3(7t+4)-8(t-2)=9

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Solution for 3(7t+4)-8(t-2)=9 equation:


Simplifying
3(7t + 4) + -8(t + -2) = 9

Reorder the terms:
3(4 + 7t) + -8(t + -2) = 9
(4 * 3 + 7t * 3) + -8(t + -2) = 9
(12 + 21t) + -8(t + -2) = 9

Reorder the terms:
12 + 21t + -8(-2 + t) = 9
12 + 21t + (-2 * -8 + t * -8) = 9
12 + 21t + (16 + -8t) = 9

Reorder the terms:
12 + 16 + 21t + -8t = 9

Combine like terms: 12 + 16 = 28
28 + 21t + -8t = 9

Combine like terms: 21t + -8t = 13t
28 + 13t = 9

Solving
28 + 13t = 9

Solving for variable 't'.

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

Add '-28' to each side of the equation.
28 + -28 + 13t = 9 + -28

Combine like terms: 28 + -28 = 0
0 + 13t = 9 + -28
13t = 9 + -28

Combine like terms: 9 + -28 = -19
13t = -19

Divide each side by '13'.
t = -1.461538462

Simplifying
t = -1.461538462

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