15x-43+8x+18=90

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Solution for 15x-43+8x+18=90 equation:


Simplifying
15x + -43 + 8x + 18 = 90

Reorder the terms:
-43 + 18 + 15x + 8x = 90

Combine like terms: -43 + 18 = -25
-25 + 15x + 8x = 90

Combine like terms: 15x + 8x = 23x
-25 + 23x = 90

Solving
-25 + 23x = 90

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + 23x = 90 + 25

Combine like terms: -25 + 25 = 0
0 + 23x = 90 + 25
23x = 90 + 25

Combine like terms: 90 + 25 = 115
23x = 115

Divide each side by '23'.
x = 5

Simplifying
x = 5

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