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

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


Simplifying
-7 + 7r = 4(7 + 3r)
-7 + 7r = (7 * 4 + 3r * 4)
-7 + 7r = (28 + 12r)

Solving
-7 + 7r = 28 + 12r

Solving for variable 'r'.

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

Add '-12r' to each side of the equation.
-7 + 7r + -12r = 28 + 12r + -12r

Combine like terms: 7r + -12r = -5r
-7 + -5r = 28 + 12r + -12r

Combine like terms: 12r + -12r = 0
-7 + -5r = 28 + 0
-7 + -5r = 28

Add '7' to each side of the equation.
-7 + 7 + -5r = 28 + 7

Combine like terms: -7 + 7 = 0
0 + -5r = 28 + 7
-5r = 28 + 7

Combine like terms: 28 + 7 = 35
-5r = 35

Divide each side by '-5'.
r = -7

Simplifying
r = -7

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