8(R-5)-7(R+4)=2(R+8)

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Solution for 8(R-5)-7(R+4)=2(R+8) equation:


Simplifying
8(R + -5) + -7(R + 4) = 2(R + 8)

Reorder the terms:
8(-5 + R) + -7(R + 4) = 2(R + 8)
(-5 * 8 + R * 8) + -7(R + 4) = 2(R + 8)
(-40 + 8R) + -7(R + 4) = 2(R + 8)

Reorder the terms:
-40 + 8R + -7(4 + R) = 2(R + 8)
-40 + 8R + (4 * -7 + R * -7) = 2(R + 8)
-40 + 8R + (-28 + -7R) = 2(R + 8)

Reorder the terms:
-40 + -28 + 8R + -7R = 2(R + 8)

Combine like terms: -40 + -28 = -68
-68 + 8R + -7R = 2(R + 8)

Combine like terms: 8R + -7R = 1R
-68 + 1R = 2(R + 8)

Reorder the terms:
-68 + 1R = 2(8 + R)
-68 + 1R = (8 * 2 + R * 2)
-68 + 1R = (16 + 2R)

Solving
-68 + 1R = 16 + 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.
-68 + 1R + -2R = 16 + 2R + -2R

Combine like terms: 1R + -2R = -1R
-68 + -1R = 16 + 2R + -2R

Combine like terms: 2R + -2R = 0
-68 + -1R = 16 + 0
-68 + -1R = 16

Add '68' to each side of the equation.
-68 + 68 + -1R = 16 + 68

Combine like terms: -68 + 68 = 0
0 + -1R = 16 + 68
-1R = 16 + 68

Combine like terms: 16 + 68 = 84
-1R = 84

Divide each side by '-1'.
R = -84

Simplifying
R = -84

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