87=6x+x+3

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Solution for 87=6x+x+3 equation:


Simplifying
87 = 6x + x + 3

Reorder the terms:
87 = 3 + 6x + x

Combine like terms: 6x + x = 7x
87 = 3 + 7x

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

Combine like terms: 7x + -7x = 0
87 + -7x = 3 + 0
87 + -7x = 3

Add '-87' to each side of the equation.
87 + -87 + -7x = 3 + -87

Combine like terms: 87 + -87 = 0
0 + -7x = 3 + -87
-7x = 3 + -87

Combine like terms: 3 + -87 = -84
-7x = -84

Divide each side by '-7'.
x = 12

Simplifying
x = 12

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