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

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


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

Reorder the terms:
2(-4 + r) = 5(r + 7)
(-4 * 2 + r * 2) = 5(r + 7)
(-8 + 2r) = 5(r + 7)

Reorder the terms:
-8 + 2r = 5(7 + r)
-8 + 2r = (7 * 5 + r * 5)
-8 + 2r = (35 + 5r)

Solving
-8 + 2r = 35 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-8 + 2r + -5r = 35 + 5r + -5r

Combine like terms: 2r + -5r = -3r
-8 + -3r = 35 + 5r + -5r

Combine like terms: 5r + -5r = 0
-8 + -3r = 35 + 0
-8 + -3r = 35

Add '8' to each side of the equation.
-8 + 8 + -3r = 35 + 8

Combine like terms: -8 + 8 = 0
0 + -3r = 35 + 8
-3r = 35 + 8

Combine like terms: 35 + 8 = 43
-3r = 43

Divide each side by '-3'.
r = -14.33333333

Simplifying
r = -14.33333333

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