-5(8r+8)+7(4r+2)=

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Solution for -5(8r+8)+7(4r+2)= equation:


Simplifying
-5(8r + 8) + 7(4r + 2) = 0

Reorder the terms:
-5(8 + 8r) + 7(4r + 2) = 0
(8 * -5 + 8r * -5) + 7(4r + 2) = 0
(-40 + -40r) + 7(4r + 2) = 0

Reorder the terms:
-40 + -40r + 7(2 + 4r) = 0
-40 + -40r + (2 * 7 + 4r * 7) = 0
-40 + -40r + (14 + 28r) = 0

Reorder the terms:
-40 + 14 + -40r + 28r = 0

Combine like terms: -40 + 14 = -26
-26 + -40r + 28r = 0

Combine like terms: -40r + 28r = -12r
-26 + -12r = 0

Solving
-26 + -12r = 0

Solving for variable 'r'.

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

Add '26' to each side of the equation.
-26 + 26 + -12r = 0 + 26

Combine like terms: -26 + 26 = 0
0 + -12r = 0 + 26
-12r = 0 + 26

Combine like terms: 0 + 26 = 26
-12r = 26

Divide each side by '-12'.
r = -2.166666667

Simplifying
r = -2.166666667

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