2(10+x)=90

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Solution for 2(10+x)=90 equation: 


Simplifying
2(10 + x) = 90
(10 * 2 + x * 2) = 90
(20 + 2x) = 90

Solving
20 + 2x = 90

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 2x = 90 + -20

Combine like terms: 20 + -20 = 0
0 + 2x = 90 + -20
2x = 90 + -20

Combine like terms: 90 + -20 = 70
2x = 70

Divide each side by '2'.
x = 35

Simplifying
x = 35

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