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

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


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

Reorder the terms:
3(-4 + 3r) = -2(4 + -7r)
(-4 * 3 + 3r * 3) = -2(4 + -7r)
(-12 + 9r) = -2(4 + -7r)
-12 + 9r = (4 * -2 + -7r * -2)
-12 + 9r = (-8 + 14r)

Solving
-12 + 9r = -8 + 14r

Solving for variable 'r'.

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

Add '-14r' to each side of the equation.
-12 + 9r + -14r = -8 + 14r + -14r

Combine like terms: 9r + -14r = -5r
-12 + -5r = -8 + 14r + -14r

Combine like terms: 14r + -14r = 0
-12 + -5r = -8 + 0
-12 + -5r = -8

Add '12' to each side of the equation.
-12 + 12 + -5r = -8 + 12

Combine like terms: -12 + 12 = 0
0 + -5r = -8 + 12
-5r = -8 + 12

Combine like terms: -8 + 12 = 4
-5r = 4

Divide each side by '-5'.
r = -0.8

Simplifying
r = -0.8

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