2(-7r-5)+3r=4r-40

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Solution for 2(-7r-5)+3r=4r-40 equation:


Simplifying
2(-7r + -5) + 3r = 4r + -40

Reorder the terms:
2(-5 + -7r) + 3r = 4r + -40
(-5 * 2 + -7r * 2) + 3r = 4r + -40
(-10 + -14r) + 3r = 4r + -40

Combine like terms: -14r + 3r = -11r
-10 + -11r = 4r + -40

Reorder the terms:
-10 + -11r = -40 + 4r

Solving
-10 + -11r = -40 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
-10 + -11r + -4r = -40 + 4r + -4r

Combine like terms: -11r + -4r = -15r
-10 + -15r = -40 + 4r + -4r

Combine like terms: 4r + -4r = 0
-10 + -15r = -40 + 0
-10 + -15r = -40

Add '10' to each side of the equation.
-10 + 10 + -15r = -40 + 10

Combine like terms: -10 + 10 = 0
0 + -15r = -40 + 10
-15r = -40 + 10

Combine like terms: -40 + 10 = -30
-15r = -30

Divide each side by '-15'.
r = 2

Simplifying
r = 2

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