2(2r-1)=7(r+7)

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Solution for 2(2r-1)=7(r+7) equation:


Simplifying
2(2r + -1) = 7(r + 7)

Reorder the terms:
2(-1 + 2r) = 7(r + 7)
(-1 * 2 + 2r * 2) = 7(r + 7)
(-2 + 4r) = 7(r + 7)

Reorder the terms:
-2 + 4r = 7(7 + r)
-2 + 4r = (7 * 7 + r * 7)
-2 + 4r = (49 + 7r)

Solving
-2 + 4r = 49 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-2 + 4r + -7r = 49 + 7r + -7r

Combine like terms: 4r + -7r = -3r
-2 + -3r = 49 + 7r + -7r

Combine like terms: 7r + -7r = 0
-2 + -3r = 49 + 0
-2 + -3r = 49

Add '2' to each side of the equation.
-2 + 2 + -3r = 49 + 2

Combine like terms: -2 + 2 = 0
0 + -3r = 49 + 2
-3r = 49 + 2

Combine like terms: 49 + 2 = 51
-3r = 51

Divide each side by '-3'.
r = -17

Simplifying
r = -17

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