2x+156=7x+21

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Solution for 2x+156=7x+21 equation:


Simplifying
2x + 156 = 7x + 21

Reorder the terms:
156 + 2x = 7x + 21

Reorder the terms:
156 + 2x = 21 + 7x

Solving
156 + 2x = 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.
156 + 2x + -7x = 21 + 7x + -7x

Combine like terms: 2x + -7x = -5x
156 + -5x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
156 + -5x = 21 + 0
156 + -5x = 21

Add '-156' to each side of the equation.
156 + -156 + -5x = 21 + -156

Combine like terms: 156 + -156 = 0
0 + -5x = 21 + -156
-5x = 21 + -156

Combine like terms: 21 + -156 = -135
-5x = -135

Divide each side by '-5'.
x = 27

Simplifying
x = 27

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