-7-5(-8+3r)=-8r+40

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Solution for -7-5(-8+3r)=-8r+40 equation:


Simplifying
-7 + -5(-8 + 3r) = -8r + 40
-7 + (-8 * -5 + 3r * -5) = -8r + 40
-7 + (40 + -15r) = -8r + 40

Combine like terms: -7 + 40 = 33
33 + -15r = -8r + 40

Reorder the terms:
33 + -15r = 40 + -8r

Solving
33 + -15r = 40 + -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
33 + -15r + 8r = 40 + -8r + 8r

Combine like terms: -15r + 8r = -7r
33 + -7r = 40 + -8r + 8r

Combine like terms: -8r + 8r = 0
33 + -7r = 40 + 0
33 + -7r = 40

Add '-33' to each side of the equation.
33 + -33 + -7r = 40 + -33

Combine like terms: 33 + -33 = 0
0 + -7r = 40 + -33
-7r = 40 + -33

Combine like terms: 40 + -33 = 7
-7r = 7

Divide each side by '-7'.
r = -1

Simplifying
r = -1

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