58=4(7-7r)+6(5-8r)

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Solution for 58=4(7-7r)+6(5-8r) equation:


Simplifying
58 = 4(7 + -7r) + 6(5 + -8r)
58 = (7 * 4 + -7r * 4) + 6(5 + -8r)
58 = (28 + -28r) + 6(5 + -8r)
58 = 28 + -28r + (5 * 6 + -8r * 6)
58 = 28 + -28r + (30 + -48r)

Reorder the terms:
58 = 28 + 30 + -28r + -48r

Combine like terms: 28 + 30 = 58
58 = 58 + -28r + -48r

Combine like terms: -28r + -48r = -76r
58 = 58 + -76r

Add '-58' to each side of the equation.
58 + -58 = 58 + -58 + -76r

Combine like terms: 58 + -58 = 0
0 = 58 + -58 + -76r

Combine like terms: 58 + -58 = 0
0 = 0 + -76r
0 = -76r

Solving
0 = -76r

Solving for variable 'r'.

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

Add '76r' to each side of the equation.
0 + 76r = -76r + 76r
Remove the zero:
76r = -76r + 76r

Combine like terms: -76r + 76r = 0
76r = 0

Divide each side by '76'.
r = 0

Simplifying
r = 0

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