30-7r=2(6-5r)

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Solution for 30-7r=2(6-5r) equation: 


Simplifying
30 + -7r = 2(6 + -5r)
30 + -7r = (6 * 2 + -5r * 2)
30 + -7r = (12 + -10r)

Solving
30 + -7r = 12 + -10r

Solving for variable 'r'.

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

Add '10r' to each side of the equation.
30 + -7r + 10r = 12 + -10r + 10r

Combine like terms: -7r + 10r = 3r
30 + 3r = 12 + -10r + 10r

Combine like terms: -10r + 10r = 0
30 + 3r = 12 + 0
30 + 3r = 12

Add '-30' to each side of the equation.
30 + -30 + 3r = 12 + -30

Combine like terms: 30 + -30 = 0
0 + 3r = 12 + -30
3r = 12 + -30

Combine like terms: 12 + -30 = -18
3r = -18

Divide each side by '3'.
r = -6

Simplifying
r = -6

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