3+7x+7x=87

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


Simplifying
3 + 7x + 7x = 87

Combine like terms: 7x + 7x = 14x
3 + 14x = 87

Solving
3 + 14x = 87

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 14x = 87 + -3

Combine like terms: 3 + -3 = 0
0 + 14x = 87 + -3
14x = 87 + -3

Combine like terms: 87 + -3 = 84
14x = 84

Divide each side by '14'.
x = 6

Simplifying
x = 6

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