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

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


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

Reorder the terms:
7 + -3r = -8 + r + -4r

Combine like terms: r + -4r = -3r
7 + -3r = -8 + -3r

Add '3r' to each side of the equation.
7 + -3r + 3r = -8 + -3r + 3r

Combine like terms: -3r + 3r = 0
7 + 0 = -8 + -3r + 3r
7 = -8 + -3r + 3r

Combine like terms: -3r + 3r = 0
7 = -8 + 0
7 = -8

Solving
7 = -8

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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