9-2(4-t-15)=-9

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Solution for 9-2(4-t-15)=-9 equation:


Simplifying
9 + -2(4 + -1t + -15) = -9

Reorder the terms:
9 + -2(4 + -15 + -1t) = -9

Combine like terms: 4 + -15 = -11
9 + -2(-11 + -1t) = -9
9 + (-11 * -2 + -1t * -2) = -9
9 + (22 + 2t) = -9

Combine like terms: 9 + 22 = 31
31 + 2t = -9

Solving
31 + 2t = -9

Solving for variable 't'.

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

Add '-31' to each side of the equation.
31 + -31 + 2t = -9 + -31

Combine like terms: 31 + -31 = 0
0 + 2t = -9 + -31
2t = -9 + -31

Combine like terms: -9 + -31 = -40
2t = -40

Divide each side by '2'.
t = -20

Simplifying
t = -20

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