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

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


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

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

Reorder the terms:
-40 + -5r = -2(-7 + 7r)
-40 + -5r = (-7 * -2 + 7r * -2)
-40 + -5r = (14 + -14r)

Solving
-40 + -5r = 14 + -14r

Solving for variable 'r'.

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

Add '14r' to each side of the equation.
-40 + -5r + 14r = 14 + -14r + 14r

Combine like terms: -5r + 14r = 9r
-40 + 9r = 14 + -14r + 14r

Combine like terms: -14r + 14r = 0
-40 + 9r = 14 + 0
-40 + 9r = 14

Add '40' to each side of the equation.
-40 + 40 + 9r = 14 + 40

Combine like terms: -40 + 40 = 0
0 + 9r = 14 + 40
9r = 14 + 40

Combine like terms: 14 + 40 = 54
9r = 54

Divide each side by '9'.
r = 6

Simplifying
r = 6

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