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

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


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

Reorder the terms:
5(1 + 2r) + -7r = r + -1
(1 * 5 + 2r * 5) + -7r = r + -1
(5 + 10r) + -7r = r + -1

Combine like terms: 10r + -7r = 3r
5 + 3r = r + -1

Reorder the terms:
5 + 3r = -1 + r

Solving
5 + 3r = -1 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
5 + 3r + -1r = -1 + r + -1r

Combine like terms: 3r + -1r = 2r
5 + 2r = -1 + r + -1r

Combine like terms: r + -1r = 0
5 + 2r = -1 + 0
5 + 2r = -1

Add '-5' to each side of the equation.
5 + -5 + 2r = -1 + -5

Combine like terms: 5 + -5 = 0
0 + 2r = -1 + -5
2r = -1 + -5

Combine like terms: -1 + -5 = -6
2r = -6

Divide each side by '2'.
r = -3

Simplifying
r = -3

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