7(3x-1)-20x=9

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Solution for 7(3x-1)-20x=9 equation:


Simplifying
7(3x + -1) + -20x = 9

Reorder the terms:
7(-1 + 3x) + -20x = 9
(-1 * 7 + 3x * 7) + -20x = 9
(-7 + 21x) + -20x = 9

Combine like terms: 21x + -20x = 1x
-7 + 1x = 9

Solving
-7 + 1x = 9

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 1x = 9 + 7

Combine like terms: -7 + 7 = 0
0 + 1x = 9 + 7
1x = 9 + 7

Combine like terms: 9 + 7 = 16
1x = 16

Divide each side by '1'.
x = 16

Simplifying
x = 16

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