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

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


Simplifying
7(2r + 5) = -5(r + 7) + 5r

Reorder the terms:
7(5 + 2r) = -5(r + 7) + 5r
(5 * 7 + 2r * 7) = -5(r + 7) + 5r
(35 + 14r) = -5(r + 7) + 5r

Reorder the terms:
35 + 14r = -5(7 + r) + 5r
35 + 14r = (7 * -5 + r * -5) + 5r
35 + 14r = (-35 + -5r) + 5r

Combine like terms: -5r + 5r = 0
35 + 14r = -35 + 0
35 + 14r = -35

Solving
35 + 14r = -35

Solving for variable 'r'.

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

Add '-35' to each side of the equation.
35 + -35 + 14r = -35 + -35

Combine like terms: 35 + -35 = 0
0 + 14r = -35 + -35
14r = -35 + -35

Combine like terms: -35 + -35 = -70
14r = -70

Divide each side by '14'.
r = -5

Simplifying
r = -5

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