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

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


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

Reorder the terms:
2(5 + 2r) = 2r + 7
(5 * 2 + 2r * 2) = 2r + 7
(10 + 4r) = 2r + 7

Reorder the terms:
10 + 4r = 7 + 2r

Solving
10 + 4r = 7 + 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.
10 + 4r + -2r = 7 + 2r + -2r

Combine like terms: 4r + -2r = 2r
10 + 2r = 7 + 2r + -2r

Combine like terms: 2r + -2r = 0
10 + 2r = 7 + 0
10 + 2r = 7

Add '-10' to each side of the equation.
10 + -10 + 2r = 7 + -10

Combine like terms: 10 + -10 = 0
0 + 2r = 7 + -10
2r = 7 + -10

Combine like terms: 7 + -10 = -3
2r = -3

Divide each side by '2'.
r = -1.5

Simplifying
r = -1.5

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