12x-40+7x+23=90

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Solution for 12x-40+7x+23=90 equation:


Simplifying
12x + -40 + 7x + 23 = 90

Reorder the terms:
-40 + 23 + 12x + 7x = 90

Combine like terms: -40 + 23 = -17
-17 + 12x + 7x = 90

Combine like terms: 12x + 7x = 19x
-17 + 19x = 90

Solving
-17 + 19x = 90

Solving for variable 'x'.

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

Add '17' to each side of the equation.
-17 + 17 + 19x = 90 + 17

Combine like terms: -17 + 17 = 0
0 + 19x = 90 + 17
19x = 90 + 17

Combine like terms: 90 + 17 = 107
19x = 107

Divide each side by '19'.
x = 5.631578947

Simplifying
x = 5.631578947

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