5+3x=7(x+3)
Answer:
-4
Step-by-step explanation:
Simplifying
5 + 3x = 7(x + 3)
Reorder the terms:
5 + 3x = 7(3 + x)
5 + 3x = (3 * 7 + x * 7)
5 + 3x = (21 + 7x)
Solving
5 + 3x = 21 + 7x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-7x' to each side of the equation.
5 + 3x + -7x = 21 + 7x + -7x
Combine like terms: 3x + -7x = -4x
5 + -4x = 21 + 7x + -7x
Combine like terms: 7x + -7x = 0
5 + -4x = 21 + 0
5 + -4x = 21
Add '-5' to each side of the equation.
5 + -5 + -4x = 21 + -5
Combine like terms: 5 + -5 = 0
0 + -4x = 21 + -5
-4x = 21 + -5
Combine like terms: 21 + -5 = 16
-4x = 16
Divide each side by '-4'.
x = -4
Simplifying
x = -4
Answer: she/he is right
the answer is 2:1
Step-by-step explanation:
Answer:
answer below
Step-by-step explanation:
in 24 hours, the number of gallons in the tank decreased by 96 gallons. This can be represented by the integer 54 so the change in the number of gallons in the tank is 4 gallons per hour.
hope this helped
inches long. How long will it be in 2
2
months if it grows 12
12
inch each month? Which method will NOT give the correct number of inches?
Answer:
Multiply 3 1/4 x 2 and then add 1/2 is the wrong correct number of inches
Step-by-step explanation
Because the correct inch is 4 1/4 while the equation 3 1/4 x 2 plus 1/2 is wrong :)