(x+15)+(3x-17)=90

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Solution for (x+15)+(3x-17)=90 equation:


Simplifying
(x + 15) + (3x + -17) = 90

Reorder the terms:
(15 + x) + (3x + -17) = 90

Remove parenthesis around (15 + x)
15 + x + (3x + -17) = 90

Reorder the terms:
15 + x + (-17 + 3x) = 90

Remove parenthesis around (-17 + 3x)
15 + x + -17 + 3x = 90

Reorder the terms:
15 + -17 + x + 3x = 90

Combine like terms: 15 + -17 = -2
-2 + x + 3x = 90

Combine like terms: x + 3x = 4x
-2 + 4x = 90

Solving
-2 + 4x = 90

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 4x = 90 + 2

Combine like terms: -2 + 2 = 0
0 + 4x = 90 + 2
4x = 90 + 2

Combine like terms: 90 + 2 = 92
4x = 92

Divide each side by '4'.
x = 23

Simplifying
x = 23

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