x+x+3x+4-9=90

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Solution for x+x+3x+4-9=90 equation:


Simplifying
x + x + 3x + 4 + -9 = 90

Reorder the terms:
4 + -9 + x + x + 3x = 90

Combine like terms: 4 + -9 = -5
-5 + x + x + 3x = 90

Combine like terms: x + x = 2x
-5 + 2x + 3x = 90

Combine like terms: 2x + 3x = 5x
-5 + 5x = 90

Solving
-5 + 5x = 90

Solving for variable 'x'.

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

Add '5' to each side of the equation.
-5 + 5 + 5x = 90 + 5

Combine like terms: -5 + 5 = 0
0 + 5x = 90 + 5
5x = 90 + 5

Combine like terms: 90 + 5 = 95
5x = 95

Divide each side by '5'.
x = 19

Simplifying
x = 19

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