(8r+9)+7(4r+3)=

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Solution for (8r+9)+7(4r+3)= equation:


Simplifying
(8r + 9) + 7(4r + 3) = 0

Reorder the terms:
(9 + 8r) + 7(4r + 3) = 0

Remove parenthesis around (9 + 8r)
9 + 8r + 7(4r + 3) = 0

Reorder the terms:
9 + 8r + 7(3 + 4r) = 0
9 + 8r + (3 * 7 + 4r * 7) = 0
9 + 8r + (21 + 28r) = 0

Reorder the terms:
9 + 21 + 8r + 28r = 0

Combine like terms: 9 + 21 = 30
30 + 8r + 28r = 0

Combine like terms: 8r + 28r = 36r
30 + 36r = 0

Solving
30 + 36r = 0

Solving for variable 'r'.

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

Add '-30' to each side of the equation.
30 + -30 + 36r = 0 + -30

Combine like terms: 30 + -30 = 0
0 + 36r = 0 + -30
36r = 0 + -30

Combine like terms: 0 + -30 = -30
36r = -30

Divide each side by '36'.
r = -0.8333333333

Simplifying
r = -0.8333333333

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