7x+2(-2x-10)=13

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Solution for 7x+2(-2x-10)=13 equation:


Simplifying
7x + 2(-2x + -10) = 13

Reorder the terms:
7x + 2(-10 + -2x) = 13
7x + (-10 * 2 + -2x * 2) = 13
7x + (-20 + -4x) = 13

Reorder the terms:
-20 + 7x + -4x = 13

Combine like terms: 7x + -4x = 3x
-20 + 3x = 13

Solving
-20 + 3x = 13

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 + 3x = 13 + 20

Combine like terms: -20 + 20 = 0
0 + 3x = 13 + 20
3x = 13 + 20

Combine like terms: 13 + 20 = 33
3x = 33

Divide each side by '3'.
x = 11

Simplifying
x = 11

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