-5(3r+8)+6(4r+10)=

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Solution for -5(3r+8)+6(4r+10)= equation:


Simplifying
-5(3r + 8) + 6(4r + 10) = 0

Reorder the terms:
-5(8 + 3r) + 6(4r + 10) = 0
(8 * -5 + 3r * -5) + 6(4r + 10) = 0
(-40 + -15r) + 6(4r + 10) = 0

Reorder the terms:
-40 + -15r + 6(10 + 4r) = 0
-40 + -15r + (10 * 6 + 4r * 6) = 0
-40 + -15r + (60 + 24r) = 0

Reorder the terms:
-40 + 60 + -15r + 24r = 0

Combine like terms: -40 + 60 = 20
20 + -15r + 24r = 0

Combine like terms: -15r + 24r = 9r
20 + 9r = 0

Solving
20 + 9r = 0

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + 9r = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 9r = 0 + -20
9r = 0 + -20

Combine like terms: 0 + -20 = -20
9r = -20

Divide each side by '9'.
r = -2.222222222

Simplifying
r = -2.222222222

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