-7(t-3)-(t+9)=2

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Solution for -7(t-3)-(t+9)=2 equation:


Simplifying
-7(t + -3) + -1(t + 9) = 2

Reorder the terms:
-7(-3 + t) + -1(t + 9) = 2
(-3 * -7 + t * -7) + -1(t + 9) = 2
(21 + -7t) + -1(t + 9) = 2

Reorder the terms:
21 + -7t + -1(9 + t) = 2
21 + -7t + (9 * -1 + t * -1) = 2
21 + -7t + (-9 + -1t) = 2

Reorder the terms:
21 + -9 + -7t + -1t = 2

Combine like terms: 21 + -9 = 12
12 + -7t + -1t = 2

Combine like terms: -7t + -1t = -8t
12 + -8t = 2

Solving
12 + -8t = 2

Solving for variable 't'.

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

Add '-12' to each side of the equation.
12 + -12 + -8t = 2 + -12

Combine like terms: 12 + -12 = 0
0 + -8t = 2 + -12
-8t = 2 + -12

Combine like terms: 2 + -12 = -10
-8t = -10

Divide each side by '-8'.
t = 1.25

Simplifying
t = 1.25

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