4-8(1+3s)=-21

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Solution for 4-8(1+3s)=-21 equation:


Simplifying
4 + -8(1 + 3s) = -21
4 + (1 * -8 + 3s * -8) = -21
4 + (-8 + -24s) = -21

Combine like terms: 4 + -8 = -4
-4 + -24s = -21

Solving
-4 + -24s = -21

Solving for variable 's'.

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

Add '4' to each side of the equation.
-4 + 4 + -24s = -21 + 4

Combine like terms: -4 + 4 = 0
0 + -24s = -21 + 4
-24s = -21 + 4

Combine like terms: -21 + 4 = -17
-24s = -17

Divide each side by '-24'.
s = 0.7083333333

Simplifying
s = 0.7083333333

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