10=-5(3+3r)-6r

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Solution for 10=-5(3+3r)-6r equation:


Simplifying
10 = -5(3 + 3r) + -6r
10 = (3 * -5 + 3r * -5) + -6r
10 = (-15 + -15r) + -6r

Combine like terms: -15r + -6r = -21r
10 = -15 + -21r

Solving
10 = -15 + -21r

Solving for variable 'r'.

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

Add '21r' to each side of the equation.
10 + 21r = -15 + -21r + 21r

Combine like terms: -21r + 21r = 0
10 + 21r = -15 + 0
10 + 21r = -15

Add '-10' to each side of the equation.
10 + -10 + 21r = -15 + -10

Combine like terms: 10 + -10 = 0
0 + 21r = -15 + -10
21r = -15 + -10

Combine like terms: -15 + -10 = -25
21r = -25

Divide each side by '21'.
r = -1.19047619

Simplifying
r = -1.19047619

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