-7+7(6r+7)=4+4r

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Solution for -7+7(6r+7)=4+4r equation:


Simplifying
-7 + 7(6r + 7) = 4 + 4r

Reorder the terms:
-7 + 7(7 + 6r) = 4 + 4r
-7 + (7 * 7 + 6r * 7) = 4 + 4r
-7 + (49 + 42r) = 4 + 4r

Combine like terms: -7 + 49 = 42
42 + 42r = 4 + 4r

Solving
42 + 42r = 4 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
42 + 42r + -4r = 4 + 4r + -4r

Combine like terms: 42r + -4r = 38r
42 + 38r = 4 + 4r + -4r

Combine like terms: 4r + -4r = 0
42 + 38r = 4 + 0
42 + 38r = 4

Add '-42' to each side of the equation.
42 + -42 + 38r = 4 + -42

Combine like terms: 42 + -42 = 0
0 + 38r = 4 + -42
38r = 4 + -42

Combine like terms: 4 + -42 = -38
38r = -38

Divide each side by '38'.
r = -1

Simplifying
r = -1

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