-7(r-5)=15-3r

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Solution for -7(r-5)=15-3r equation:


Simplifying
-7(r + -5) = 15 + -3r

Reorder the terms:
-7(-5 + r) = 15 + -3r
(-5 * -7 + r * -7) = 15 + -3r
(35 + -7r) = 15 + -3r

Solving
35 + -7r = 15 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
35 + -7r + 3r = 15 + -3r + 3r

Combine like terms: -7r + 3r = -4r
35 + -4r = 15 + -3r + 3r

Combine like terms: -3r + 3r = 0
35 + -4r = 15 + 0
35 + -4r = 15

Add '-35' to each side of the equation.
35 + -35 + -4r = 15 + -35

Combine like terms: 35 + -35 = 0
0 + -4r = 15 + -35
-4r = 15 + -35

Combine like terms: 15 + -35 = -20
-4r = -20

Divide each side by '-4'.
r = 5

Simplifying
r = 5

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