7x+9x-3x=87+4

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Solution for 7x+9x-3x=87+4 equation: 


Simplifying
7x + 9x + -3x = 87 + 4

Combine like terms: 7x + 9x = 16x
16x + -3x = 87 + 4

Combine like terms: 16x + -3x = 13x
13x = 87 + 4

Combine like terms: 87 + 4 = 91
13x = 91

Solving
13x = 91

Solving for variable 'x'.

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

Divide each side by '13'.
x = 7

Simplifying
x = 7

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