5(t-1)+2(t+3)+7=85

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Solution for 5(t-1)+2(t+3)+7=85 equation:


Simplifying
5(t + -1) + 2(t + 3) + 7 = 85

Reorder the terms:
5(-1 + t) + 2(t + 3) + 7 = 85
(-1 * 5 + t * 5) + 2(t + 3) + 7 = 85
(-5 + 5t) + 2(t + 3) + 7 = 85

Reorder the terms:
-5 + 5t + 2(3 + t) + 7 = 85
-5 + 5t + (3 * 2 + t * 2) + 7 = 85
-5 + 5t + (6 + 2t) + 7 = 85

Reorder the terms:
-5 + 6 + 7 + 5t + 2t = 85

Combine like terms: -5 + 6 = 1
1 + 7 + 5t + 2t = 85

Combine like terms: 1 + 7 = 8
8 + 5t + 2t = 85

Combine like terms: 5t + 2t = 7t
8 + 7t = 85

Solving
8 + 7t = 85

Solving for variable 't'.

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

Add '-8' to each side of the equation.
8 + -8 + 7t = 85 + -8

Combine like terms: 8 + -8 = 0
0 + 7t = 85 + -8
7t = 85 + -8

Combine like terms: 85 + -8 = 77
7t = 77

Divide each side by '7'.
t = 11

Simplifying
t = 11

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