10(7-2x)=30

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Solution for 10(7-2x)=30 equation: 


Simplifying
10(7 + -2x) = 30
(7 * 10 + -2x * 10) = 30
(70 + -20x) = 30

Solving
70 + -20x = 30

Solving for variable 'x'.

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

Add '-70' to each side of the equation.
70 + -70 + -20x = 30 + -70

Combine like terms: 70 + -70 = 0
0 + -20x = 30 + -70
-20x = 30 + -70

Combine like terms: 30 + -70 = -40
-20x = -40

Divide each side by '-20'.
x = 2

Simplifying
x = 2

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