2(7+8r)-5r=4(1+3r)-3r

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Solution for 2(7+8r)-5r=4(1+3r)-3r equation:


Simplifying
2(7 + 8r) + -5r = 4(1 + 3r) + -3r
(7 * 2 + 8r * 2) + -5r = 4(1 + 3r) + -3r
(14 + 16r) + -5r = 4(1 + 3r) + -3r

Combine like terms: 16r + -5r = 11r
14 + 11r = 4(1 + 3r) + -3r
14 + 11r = (1 * 4 + 3r * 4) + -3r
14 + 11r = (4 + 12r) + -3r

Combine like terms: 12r + -3r = 9r
14 + 11r = 4 + 9r

Solving
14 + 11r = 4 + 9r

Solving for variable 'r'.

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

Add '-9r' to each side of the equation.
14 + 11r + -9r = 4 + 9r + -9r

Combine like terms: 11r + -9r = 2r
14 + 2r = 4 + 9r + -9r

Combine like terms: 9r + -9r = 0
14 + 2r = 4 + 0
14 + 2r = 4

Add '-14' to each side of the equation.
14 + -14 + 2r = 4 + -14

Combine like terms: 14 + -14 = 0
0 + 2r = 4 + -14
2r = 4 + -14

Combine like terms: 4 + -14 = -10
2r = -10

Divide each side by '2'.
r = -5

Simplifying
r = -5

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