28x-7=21x-70

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Solution for 28x-7=21x-70 equation:


Simplifying
28x + -7 = 21x + -70

Reorder the terms:
-7 + 28x = 21x + -70

Reorder the terms:
-7 + 28x = -70 + 21x

Solving
-7 + 28x = -70 + 21x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-21x' to each side of the equation.
-7 + 28x + -21x = -70 + 21x + -21x

Combine like terms: 28x + -21x = 7x
-7 + 7x = -70 + 21x + -21x

Combine like terms: 21x + -21x = 0
-7 + 7x = -70 + 0
-7 + 7x = -70

Add '7' to each side of the equation.
-7 + 7 + 7x = -70 + 7

Combine like terms: -7 + 7 = 0
0 + 7x = -70 + 7
7x = -70 + 7

Combine like terms: -70 + 7 = -63
7x = -63

Divide each side by '7'.
x = -9

Simplifying
x = -9

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