54=-8(4-5r)+3r

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Solution for 54=-8(4-5r)+3r equation:


Simplifying
54 = -8(4 + -5r) + 3r
54 = (4 * -8 + -5r * -8) + 3r
54 = (-32 + 40r) + 3r

Combine like terms: 40r + 3r = 43r
54 = -32 + 43r

Solving
54 = -32 + 43r

Solving for variable 'r'.

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

Add '-43r' to each side of the equation.
54 + -43r = -32 + 43r + -43r

Combine like terms: 43r + -43r = 0
54 + -43r = -32 + 0
54 + -43r = -32

Add '-54' to each side of the equation.
54 + -54 + -43r = -32 + -54

Combine like terms: 54 + -54 = 0
0 + -43r = -32 + -54
-43r = -32 + -54

Combine like terms: -32 + -54 = -86
-43r = -86

Divide each side by '-43'.
r = 2

Simplifying
r = 2

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