10(8r+9)=4-6r

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Solution for 10(8r+9)=4-6r equation:


Simplifying
10(8r + 9) = 4 + -6r

Reorder the terms:
10(9 + 8r) = 4 + -6r
(9 * 10 + 8r * 10) = 4 + -6r
(90 + 80r) = 4 + -6r

Solving
90 + 80r = 4 + -6r

Solving for variable 'r'.

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

Add '6r' to each side of the equation.
90 + 80r + 6r = 4 + -6r + 6r

Combine like terms: 80r + 6r = 86r
90 + 86r = 4 + -6r + 6r

Combine like terms: -6r + 6r = 0
90 + 86r = 4 + 0
90 + 86r = 4

Add '-90' to each side of the equation.
90 + -90 + 86r = 4 + -90

Combine like terms: 90 + -90 = 0
0 + 86r = 4 + -90
86r = 4 + -90

Combine like terms: 4 + -90 = -86
86r = -86

Divide each side by '86'.
r = -1

Simplifying
r = -1

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