5x+1+5x+1+12x-7+12x-7=90

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Solution for 5x+1+5x+1+12x-7+12x-7=90 equation: 


Simplifying
5x + 1 + 5x + 1 + 12x + -7 + 12x + -7 = 90

Reorder the terms:
1 + 1 + -7 + -7 + 5x + 5x + 12x + 12x = 90

Combine like terms: 1 + 1 = 2
2 + -7 + -7 + 5x + 5x + 12x + 12x = 90

Combine like terms: 2 + -7 = -5
-5 + -7 + 5x + 5x + 12x + 12x = 90

Combine like terms: -5 + -7 = -12
-12 + 5x + 5x + 12x + 12x = 90

Combine like terms: 5x + 5x = 10x
-12 + 10x + 12x + 12x = 90

Combine like terms: 10x + 12x = 22x
-12 + 22x + 12x = 90

Combine like terms: 22x + 12x = 34x
-12 + 34x = 90

Solving
-12 + 34x = 90

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 34x = 90 + 12

Combine like terms: -12 + 12 = 0
0 + 34x = 90 + 12
34x = 90 + 12

Combine like terms: 90 + 12 = 102
34x = 102

Divide each side by '34'.
x = 3

Simplifying
x = 3

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