4-7(1+3r)=-24

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Solution for 4-7(1+3r)=-24 equation: 


Simplifying
4 + -7(1 + 3r) = -24
4 + (1 * -7 + 3r * -7) = -24
4 + (-7 + -21r) = -24

Combine like terms: 4 + -7 = -3
-3 + -21r = -24

Solving
-3 + -21r = -24

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + -21r = -24 + 3

Combine like terms: -3 + 3 = 0
0 + -21r = -24 + 3
-21r = -24 + 3

Combine like terms: -24 + 3 = -21
-21r = -21

Divide each side by '-21'.
r = 1

Simplifying
r = 1

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