7(-10-5x)=-420

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Solution for 7(-10-5x)=-420 equation: 


Simplifying
7(-10 + -5x) = -420
(-10 * 7 + -5x * 7) = -420
(-70 + -35x) = -420

Solving
-70 + -35x = -420

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 + -35x = -420 + 70

Combine like terms: -70 + 70 = 0
0 + -35x = -420 + 70
-35x = -420 + 70

Combine like terms: -420 + 70 = -350
-35x = -350

Divide each side by '-35'.
x = 10

Simplifying
x = 10

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