2t+5(t-3*4)=21-9+3t

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Solution for 2t+5(t-3*4)=21-9+3t equation:


Simplifying
2t + 5(t + -3 * 4) = 21 + -9 + 3t

Multiply -3 * 4
2t + 5(t + -12) = 21 + -9 + 3t

Reorder the terms:
2t + 5(-12 + t) = 21 + -9 + 3t
2t + (-12 * 5 + t * 5) = 21 + -9 + 3t
2t + (-60 + 5t) = 21 + -9 + 3t

Reorder the terms:
-60 + 2t + 5t = 21 + -9 + 3t

Combine like terms: 2t + 5t = 7t
-60 + 7t = 21 + -9 + 3t

Combine like terms: 21 + -9 = 12
-60 + 7t = 12 + 3t

Solving
-60 + 7t = 12 + 3t

Solving for variable 't'.

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

Add '-3t' to each side of the equation.
-60 + 7t + -3t = 12 + 3t + -3t

Combine like terms: 7t + -3t = 4t
-60 + 4t = 12 + 3t + -3t

Combine like terms: 3t + -3t = 0
-60 + 4t = 12 + 0
-60 + 4t = 12

Add '60' to each side of the equation.
-60 + 60 + 4t = 12 + 60

Combine like terms: -60 + 60 = 0
0 + 4t = 12 + 60
4t = 12 + 60

Combine like terms: 12 + 60 = 72
4t = 72

Divide each side by '4'.
t = 18

Simplifying
t = 18

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