Answer:
x =-2 and z =-4
Step-by-step explanation:
We need to solve the following systems of equation
-3x-2y+4z = -16 eq(1)
10x+10y-5z = 30 eq(2)
5x+7y+8z = -21 eq(3)
Multiply eq(1) with 10 and eq(2) with 3
-30x-20y+40z = -160
30x+30y-15z = 90
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10y+25z = -70
Divide by 10
2y+5z = -14 eq(4)
Multiply eq(1) with 10 and eq(3) with 6
-30x-20y+40z = -160
30x+42y+48z = -126
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22y+88z = -286
Divide by 11
2y+8z = -26 eq(5)
Subtract eq(4) and eq(5)
2y+5z = -14
2y+8z = -26
- - +
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-3z = 12
z = 12/-3
z = -4
Putting value of z in eq(4)
2y+5z = -14
2y +5(-4) = -14
2y = -14 +20
2y = 6
y = 3
Putting value of z and y in eq(1)
-3x-2y+4z = -16
-3x-2(3)+4(-4) = -16
-3x -6 -16 = -16
-3x = -16+16+6
-3x = 6
x = 6/-3
x = -2
Answer:
No solution for the given algebraic expression.
Step-by-step explanation:
To solve the algebraic equation we must isolating the variable or rewriting the equation so that the one expression is only the variable with the coefficient 1.
Solve:
Now put every terms that contains variables on one side of the equation and those terms on the other side which does not contains the variable.
Combine like terms:
which is not true.
therefore, the given expression have NO SOLUTION.
The equation has .
Further explanation:
Given:
The equation is .
Calculation:
The above equation involves only one variable.
To solve a one variable linear equation, arrange all the terms that contain variable on one side and the terms that are free from variable on the other side.
Write the given equation by taking terms that contains variable on left side and the terms which are free from variables on right side.
Subtract from both the sides of the given equation.
Subtract from both the sides of the above equation,
The above equation shows that the value of is equal to .
The statement “0 is equal to -12” is a false statement.
Therefore, the equation has no solution.
No solution means there exists no value of that satisfies the given equation.
Learn more:
1. Solution of linear equation ://brainly.com/question/1682776
2. Equation of line brainly.com/question/1473992
3. A problem on intercept brainly.com/question/1473992
4. A problem on composite function brainly.com/question/2723982
Answer details:
Grade: Middle school
Subject: Mathematics
Chapter: Linear equation
Keywords: Equation, variable, 3x - 2x + 4 = 5x - 4x – 8, constant, linear equation, no solution, solve, addition, subtraction, isolate, plug, substitute.
4, 18, 20
A 8
® 12
© 14
0 18
Answer:
18
Step-by-step explanation:
The middle number of the sequence us the median
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CD = √(10²+6.8²) = 10.33
AC = √(14.2²+10²) = 17.36
AD = 14.2+6.8=21
21 +10.33+6.8=38.13 cm (perimeter) rounded 38 cm
Answer:
Step-by-step explanation:
2 3/4