10x-20+x+70=90

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Solution for 10x-20+x+70=90 equation:


Simplifying
10x + -20 + x + 70 = 90

Reorder the terms:
-20 + 70 + 10x + x = 90

Combine like terms: -20 + 70 = 50
50 + 10x + x = 90

Combine like terms: 10x + x = 11x
50 + 11x = 90

Solving
50 + 11x = 90

Solving for variable 'x'.

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

Add '-50' to each side of the equation.
50 + -50 + 11x = 90 + -50

Combine like terms: 50 + -50 = 0
0 + 11x = 90 + -50
11x = 90 + -50

Combine like terms: 90 + -50 = 40
11x = 40

Divide each side by '11'.
x = 3.636363636

Simplifying
x = 3.636363636

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