2-3(r-7)-7r=4(r-2)+8

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Solution for 2-3(r-7)-7r=4(r-2)+8 equation:


Simplifying
2 + -3(r + -7) + -7r = 4(r + -2) + 8

Reorder the terms:
2 + -3(-7 + r) + -7r = 4(r + -2) + 8
2 + (-7 * -3 + r * -3) + -7r = 4(r + -2) + 8
2 + (21 + -3r) + -7r = 4(r + -2) + 8

Combine like terms: 2 + 21 = 23
23 + -3r + -7r = 4(r + -2) + 8

Combine like terms: -3r + -7r = -10r
23 + -10r = 4(r + -2) + 8

Reorder the terms:
23 + -10r = 4(-2 + r) + 8
23 + -10r = (-2 * 4 + r * 4) + 8
23 + -10r = (-8 + 4r) + 8

Reorder the terms:
23 + -10r = -8 + 8 + 4r

Combine like terms: -8 + 8 = 0
23 + -10r = 0 + 4r
23 + -10r = 4r

Solving
23 + -10r = 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
23 + -10r + -4r = 4r + -4r

Combine like terms: -10r + -4r = -14r
23 + -14r = 4r + -4r

Combine like terms: 4r + -4r = 0
23 + -14r = 0

Add '-23' to each side of the equation.
23 + -23 + -14r = 0 + -23

Combine like terms: 23 + -23 = 0
0 + -14r = 0 + -23
-14r = 0 + -23

Combine like terms: 0 + -23 = -23
-14r = -23

Divide each side by '-14'.
r = 1.642857143

Simplifying
r = 1.642857143

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