-8(7+5r)=38+7r

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Solution for -8(7+5r)=38+7r equation:


Simplifying
-8(7 + 5r) = 38 + 7r
(7 * -8 + 5r * -8) = 38 + 7r
(-56 + -40r) = 38 + 7r

Solving
-56 + -40r = 38 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-56 + -40r + -7r = 38 + 7r + -7r

Combine like terms: -40r + -7r = -47r
-56 + -47r = 38 + 7r + -7r

Combine like terms: 7r + -7r = 0
-56 + -47r = 38 + 0
-56 + -47r = 38

Add '56' to each side of the equation.
-56 + 56 + -47r = 38 + 56

Combine like terms: -56 + 56 = 0
0 + -47r = 38 + 56
-47r = 38 + 56

Combine like terms: 38 + 56 = 94
-47r = 94

Divide each side by '-47'.
r = -2

Simplifying
r = -2

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