-156=3(-7r+4)

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Solution for -156=3(-7r+4) equation:


Simplifying
-156 = 3(-7r + 4)

Reorder the terms:
-156 = 3(4 + -7r)
-156 = (4 * 3 + -7r * 3)
-156 = (12 + -21r)

Solving
-156 = 12 + -21r

Solving for variable 'r'.

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

Add '21r' to each side of the equation.
-156 + 21r = 12 + -21r + 21r

Combine like terms: -21r + 21r = 0
-156 + 21r = 12 + 0
-156 + 21r = 12

Add '156' to each side of the equation.
-156 + 156 + 21r = 12 + 156

Combine like terms: -156 + 156 = 0
0 + 21r = 12 + 156
21r = 12 + 156

Combine like terms: 12 + 156 = 168
21r = 168

Divide each side by '21'.
r = 8

Simplifying
r = 8

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