5(6r+4)+5(-3r+2)=7r+4+r-2

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Solution for 5(6r+4)+5(-3r+2)=7r+4+r-2 equation:


Simplifying
5(6r + 4) + 5(-3r + 2) = 7r + 4 + r + -2

Reorder the terms:
5(4 + 6r) + 5(-3r + 2) = 7r + 4 + r + -2
(4 * 5 + 6r * 5) + 5(-3r + 2) = 7r + 4 + r + -2
(20 + 30r) + 5(-3r + 2) = 7r + 4 + r + -2

Reorder the terms:
20 + 30r + 5(2 + -3r) = 7r + 4 + r + -2
20 + 30r + (2 * 5 + -3r * 5) = 7r + 4 + r + -2
20 + 30r + (10 + -15r) = 7r + 4 + r + -2

Reorder the terms:
20 + 10 + 30r + -15r = 7r + 4 + r + -2

Combine like terms: 20 + 10 = 30
30 + 30r + -15r = 7r + 4 + r + -2

Combine like terms: 30r + -15r = 15r
30 + 15r = 7r + 4 + r + -2

Reorder the terms:
30 + 15r = 4 + -2 + 7r + r

Combine like terms: 4 + -2 = 2
30 + 15r = 2 + 7r + r

Combine like terms: 7r + r = 8r
30 + 15r = 2 + 8r

Solving
30 + 15r = 2 + 8r

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
30 + 15r + -8r = 2 + 8r + -8r

Combine like terms: 15r + -8r = 7r
30 + 7r = 2 + 8r + -8r

Combine like terms: 8r + -8r = 0
30 + 7r = 2 + 0
30 + 7r = 2

Add '-30' to each side of the equation.
30 + -30 + 7r = 2 + -30

Combine like terms: 30 + -30 = 0
0 + 7r = 2 + -30
7r = 2 + -30

Combine like terms: 2 + -30 = -28
7r = -28

Divide each side by '7'.
r = -4

Simplifying
r = -4

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