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

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


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

Solving
7 + -3r = -8 + -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.
7 + -3r + 4r = -8 + -4r + 4r

Combine like terms: -3r + 4r = 1r
7 + 1r = -8 + -4r + 4r

Combine like terms: -4r + 4r = 0
7 + 1r = -8 + 0
7 + 1r = -8

Add '-7' to each side of the equation.
7 + -7 + 1r = -8 + -7

Combine like terms: 7 + -7 = 0
0 + 1r = -8 + -7
1r = -8 + -7

Combine like terms: -8 + -7 = -15
1r = -15

Divide each side by '1'.
r = -15

Simplifying
r = -15

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