-2r+5(r-7)=-40-2r

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Solution for -2r+5(r-7)=-40-2r equation:


Simplifying
-2r + 5(r + -7) = -40 + -2r

Reorder the terms:
-2r + 5(-7 + r) = -40 + -2r
-2r + (-7 * 5 + r * 5) = -40 + -2r
-2r + (-35 + 5r) = -40 + -2r

Reorder the terms:
-35 + -2r + 5r = -40 + -2r

Combine like terms: -2r + 5r = 3r
-35 + 3r = -40 + -2r

Solving
-35 + 3r = -40 + -2r

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
-35 + 3r + 2r = -40 + -2r + 2r

Combine like terms: 3r + 2r = 5r
-35 + 5r = -40 + -2r + 2r

Combine like terms: -2r + 2r = 0
-35 + 5r = -40 + 0
-35 + 5r = -40

Add '35' to each side of the equation.
-35 + 35 + 5r = -40 + 35

Combine like terms: -35 + 35 = 0
0 + 5r = -40 + 35
5r = -40 + 35

Combine like terms: -40 + 35 = -5
5r = -5

Divide each side by '5'.
r = -1

Simplifying
r = -1

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