8(r-3)-7(r-1)=2(r+5)

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Solution for 8(r-3)-7(r-1)=2(r+5) equation:


Simplifying
8(r + -3) + -7(r + -1) = 2(r + 5)

Reorder the terms:
8(-3 + r) + -7(r + -1) = 2(r + 5)
(-3 * 8 + r * 8) + -7(r + -1) = 2(r + 5)
(-24 + 8r) + -7(r + -1) = 2(r + 5)

Reorder the terms:
-24 + 8r + -7(-1 + r) = 2(r + 5)
-24 + 8r + (-1 * -7 + r * -7) = 2(r + 5)
-24 + 8r + (7 + -7r) = 2(r + 5)

Reorder the terms:
-24 + 7 + 8r + -7r = 2(r + 5)

Combine like terms: -24 + 7 = -17
-17 + 8r + -7r = 2(r + 5)

Combine like terms: 8r + -7r = 1r
-17 + 1r = 2(r + 5)

Reorder the terms:
-17 + 1r = 2(5 + r)
-17 + 1r = (5 * 2 + r * 2)
-17 + 1r = (10 + 2r)

Solving
-17 + 1r = 10 + 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.
-17 + 1r + -2r = 10 + 2r + -2r

Combine like terms: 1r + -2r = -1r
-17 + -1r = 10 + 2r + -2r

Combine like terms: 2r + -2r = 0
-17 + -1r = 10 + 0
-17 + -1r = 10

Add '17' to each side of the equation.
-17 + 17 + -1r = 10 + 17

Combine like terms: -17 + 17 = 0
0 + -1r = 10 + 17
-1r = 10 + 17

Combine like terms: 10 + 17 = 27
-1r = 27

Divide each side by '-1'.
r = -27

Simplifying
r = -27

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