The solution to the system of equations is x = 5 and y = 5. The coordinates (5, 5) represent the point where the two lines intersect in the xy-plane, and it is the unique solution to this system of linear equations.
Given that the system of equations:
y = 3x - 10 (1)
y = 2x - 5 (2)
Since both equations are set equal to y, equate the right-hand sides of the equations since they represent the same value of y:
3x - 10 = 2x - 5
Now, let's solve for x:
3x - 2x = -5 + 10
x = 5
Now, found the value of x, substitute it back into either of the original equations to find the corresponding value of y.
Let's use the equation (1):
y = 3x - 10
y = 3(5) - 10
y = 15 - 10
y = 5
Hence, the values of x and y are 5 and 5. The system of equations have unique solution.
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Complete question:
Solve the system of equations for x and y:
If you're looking for a solution for both equations and had a choice between the 3 ways of solving it, I would choose substitution for this problem. So..
2x-5=3x-10
Move like terms to their own sides.
Take 2x away from both sides, and add 10 to both sides. That should leave you with
5=x
Now that you have the x, plug it into the equation that works best for you to solve.
That should be y=2(5)-5
y=10-5
y=5
(5,5) is your solution.
12(b+2)+3b=−1
Enter your answer as a fraction.
The solution to the equation 12(b+2) + 3b = -1 is b = -5/3.
Given the equation in the question:
12( b + 2 ) + 3b = -1
To solve the equation 12( b + 2 ) + 3b = -1, first apply the distributive property.
Distribute the 12 across the terms inside the parentheses:
12( b + 2 ) + 3b = -1
12×b + 12×2 + 3b = -1
Simplifying, we get:
12b + 24 + 3b = -1
Collect and combine the like terms on the left side of the equation:
12b + 3b + 24 = -1
15b + 24 = -1
Subtract 24 from both sides of the equation:
15b + 24 - 24 = -1 - 24
15b = -1 - 24
15b = -25
Divide both sides by 15:
b = -25/15
Simplify
b = -5/3
Therefore, the value of b is -5/3.
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Answer: -5/3
Step-by-step explanation:
12(b + 2) + 3b = -1
12b + 24 + 3b = -1
15b + 24 = -1
15b = -1-24
b = -25/15 = -5/3
A 3/4
B 16/18
C 36/48
D 42/56
Answer:
(-2,8)
Step-by-step explanation:
3x+3y = 18
2x+y = 4
Multiply the second equation by -3
-3(2x+y) = -3*4
-6x-3y = -12
Add this to the first equation
3x+3y = 18
-6x-3y = -12
-------------------------
-3x = 6
Divide each side by -3
-3x/-3 = 6/-3
x = -2
Now solve for y
2x+y = 4
2(-2) +y = 4
-4+y =4
Add 4 to each side
-4+4+y = 4+4
y =8
Answer:
(-2,8)
Step-by-step explanation:
3x + 3y = 18 (1)
2x + y = 4 (2)
(1) - 3(2)
3x + 3y = 18
-(6x + 3y = 12)
-3x = 6
x = -2
Using (2)
2(-2) + y = 4
-4 + y = 4
y = 8