3(-3x+7)=-42

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


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

Reorder the terms:
3(7 + -3x) = -42
(7 * 3 + -3x * 3) = -42
(21 + -9x) = -42

Solving
21 + -9x = -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 + -9x = -42 + -21

Combine like terms: 21 + -21 = 0
0 + -9x = -42 + -21
-9x = -42 + -21

Combine like terms: -42 + -21 = -63
-9x = -63

Divide each side by '-9'.
x = 7

Simplifying
x = 7

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