4(r+5)-3r=7

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Solution for 4(r+5)-3r=7 equation:


Simplifying
4(r + 5) + -3r = 7

Reorder the terms:
4(5 + r) + -3r = 7
(5 * 4 + r * 4) + -3r = 7
(20 + 4r) + -3r = 7

Combine like terms: 4r + -3r = 1r
20 + 1r = 7

Solving
20 + 1r = 7

Solving for variable 'r'.

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

Add '-20' to each side of the equation.
20 + -20 + 1r = 7 + -20

Combine like terms: 20 + -20 = 0
0 + 1r = 7 + -20
1r = 7 + -20

Combine like terms: 7 + -20 = -13
1r = -13

Divide each side by '1'.
r = -13

Simplifying
r = -13

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