-7(-1x+3)=42

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Solution for -7(-1x+3)=42 equation: 


Simplifying
-7(-1x + 3) = 42

Reorder the terms:
-7(3 + -1x) = 42
(3 * -7 + -1x * -7) = 42
(-21 + 7x) = 42

Solving
-21 + 7x = 42

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 7x = 42 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 42 + 21
7x = 42 + 21

Combine like terms: 42 + 21 = 63
7x = 63

Divide each side by '7'.
x = 9

Simplifying
x = 9

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