2(7r-4)=40+6r

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Solution for 2(7r-4)=40+6r equation:


Simplifying
2(7r + -4) = 40 + 6r

Reorder the terms:
2(-4 + 7r) = 40 + 6r
(-4 * 2 + 7r * 2) = 40 + 6r
(-8 + 14r) = 40 + 6r

Solving
-8 + 14r = 40 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
-8 + 14r + -6r = 40 + 6r + -6r

Combine like terms: 14r + -6r = 8r
-8 + 8r = 40 + 6r + -6r

Combine like terms: 6r + -6r = 0
-8 + 8r = 40 + 0
-8 + 8r = 40

Add '8' to each side of the equation.
-8 + 8 + 8r = 40 + 8

Combine like terms: -8 + 8 = 0
0 + 8r = 40 + 8
8r = 40 + 8

Combine like terms: 40 + 8 = 48
8r = 48

Divide each side by '8'.
r = 6

Simplifying
r = 6

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