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

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


Simplifying
7(r + 1) + -2r = 3(r + -5)

Reorder the terms:
7(1 + r) + -2r = 3(r + -5)
(1 * 7 + r * 7) + -2r = 3(r + -5)
(7 + 7r) + -2r = 3(r + -5)

Combine like terms: 7r + -2r = 5r
7 + 5r = 3(r + -5)

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

Solving
7 + 5r = -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.
7 + 5r + -3r = -15 + 3r + -3r

Combine like terms: 5r + -3r = 2r
7 + 2r = -15 + 3r + -3r

Combine like terms: 3r + -3r = 0
7 + 2r = -15 + 0
7 + 2r = -15

Add '-7' to each side of the equation.
7 + -7 + 2r = -15 + -7

Combine like terms: 7 + -7 = 0
0 + 2r = -15 + -7
2r = -15 + -7

Combine like terms: -15 + -7 = -22
2r = -22

Divide each side by '2'.
r = -11

Simplifying
r = -11

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