15=-2(2T-4)

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Solution for 15=-2(2T-4) equation:


Simplifying
15 = -2(2T + -4)

Reorder the terms:
15 = -2(-4 + 2T)
15 = (-4 * -2 + 2T * -2)
15 = (8 + -4T)

Solving
15 = 8 + -4T

Solving for variable 'T'.

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

Add '4T' to each side of the equation.
15 + 4T = 8 + -4T + 4T

Combine like terms: -4T + 4T = 0
15 + 4T = 8 + 0
15 + 4T = 8

Add '-15' to each side of the equation.
15 + -15 + 4T = 8 + -15

Combine like terms: 15 + -15 = 0
0 + 4T = 8 + -15
4T = 8 + -15

Combine like terms: 8 + -15 = -7
4T = -7

Divide each side by '4'.
T = -1.75

Simplifying
T = -1.75

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