-3(3-7x)=159

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Solution for -3(3-7x)=159 equation: 


Simplifying
-3(3 + -7x) = 159
(3 * -3 + -7x * -3) = 159
(-9 + 21x) = 159

Solving
-9 + 21x = 159

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 21x = 159 + 9

Combine like terms: -9 + 9 = 0
0 + 21x = 159 + 9
21x = 159 + 9

Combine like terms: 159 + 9 = 168
21x = 168

Divide each side by '21'.
x = 8

Simplifying
x = 8

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