3x+87=7x+131

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Solution for 3x+87=7x+131 equation:


Simplifying
3x + 87 = 7x + 131

Reorder the terms:
87 + 3x = 7x + 131

Reorder the terms:
87 + 3x = 131 + 7x

Solving
87 + 3x = 131 + 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.
87 + 3x + -7x = 131 + 7x + -7x

Combine like terms: 3x + -7x = -4x
87 + -4x = 131 + 7x + -7x

Combine like terms: 7x + -7x = 0
87 + -4x = 131 + 0
87 + -4x = 131

Add '-87' to each side of the equation.
87 + -87 + -4x = 131 + -87

Combine like terms: 87 + -87 = 0
0 + -4x = 131 + -87
-4x = 131 + -87

Combine like terms: 131 + -87 = 44
-4x = 44

Divide each side by '-4'.
x = -11

Simplifying
x = -11

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