-5(7r+8r)+2(6r+7)=

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Solution for -5(7r+8r)+2(6r+7)= equation:


Simplifying
-5(7r + 8r) + 2(6r + 7) = 0

Combine like terms: 7r + 8r = 15r
-5(15r) + 2(6r + 7) = 0

Remove parenthesis around (15r)
-5 * 15r + 2(6r + 7) = 0

Multiply -5 * 15
-75r + 2(6r + 7) = 0

Reorder the terms:
-75r + 2(7 + 6r) = 0
-75r + (7 * 2 + 6r * 2) = 0
-75r + (14 + 12r) = 0

Reorder the terms:
14 + -75r + 12r = 0

Combine like terms: -75r + 12r = -63r
14 + -63r = 0

Solving
14 + -63r = 0

Solving for variable 'r'.

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

Add '-14' to each side of the equation.
14 + -14 + -63r = 0 + -14

Combine like terms: 14 + -14 = 0
0 + -63r = 0 + -14
-63r = 0 + -14

Combine like terms: 0 + -14 = -14
-63r = -14

Divide each side by '-63'.
r = 0.2222222222

Simplifying
r = 0.2222222222

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