21x-28-15x-25=7x-70

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Solution for 21x-28-15x-25=7x-70 equation:


Simplifying
21x + -28 + -15x + -25 = 7x + -70

Reorder the terms:
-28 + -25 + 21x + -15x = 7x + -70

Combine like terms: -28 + -25 = -53
-53 + 21x + -15x = 7x + -70

Combine like terms: 21x + -15x = 6x
-53 + 6x = 7x + -70

Reorder the terms:
-53 + 6x = -70 + 7x

Solving
-53 + 6x = -70 + 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.
-53 + 6x + -7x = -70 + 7x + -7x

Combine like terms: 6x + -7x = -1x
-53 + -1x = -70 + 7x + -7x

Combine like terms: 7x + -7x = 0
-53 + -1x = -70 + 0
-53 + -1x = -70

Add '53' to each side of the equation.
-53 + 53 + -1x = -70 + 53

Combine like terms: -53 + 53 = 0
0 + -1x = -70 + 53
-1x = -70 + 53

Combine like terms: -70 + 53 = -17
-1x = -17

Divide each side by '-1'.
x = 17

Simplifying
x = 17

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