7(4-5x)=-42

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Solution for 7(4-5x)=-42 equation: 


Simplifying
7(4 + -5x) = -42
(4 * 7 + -5x * 7) = -42
(28 + -35x) = -42

Solving
28 + -35x = -42

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + -35x = -42 + -28

Combine like terms: 28 + -28 = 0
0 + -35x = -42 + -28
-35x = -42 + -28

Combine like terms: -42 + -28 = -70
-35x = -70

Divide each side by '-35'.
x = 2

Simplifying
x = 2

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