4(t-3)-3(t+4)=-21

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Solution for 4(t-3)-3(t+4)=-21 equation:


Simplifying
4(t + -3) + -3(t + 4) = -21

Reorder the terms:
4(-3 + t) + -3(t + 4) = -21
(-3 * 4 + t * 4) + -3(t + 4) = -21
(-12 + 4t) + -3(t + 4) = -21

Reorder the terms:
-12 + 4t + -3(4 + t) = -21
-12 + 4t + (4 * -3 + t * -3) = -21
-12 + 4t + (-12 + -3t) = -21

Reorder the terms:
-12 + -12 + 4t + -3t = -21

Combine like terms: -12 + -12 = -24
-24 + 4t + -3t = -21

Combine like terms: 4t + -3t = 1t
-24 + 1t = -21

Solving
-24 + 1t = -21

Solving for variable 't'.

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

Add '24' to each side of the equation.
-24 + 24 + 1t = -21 + 24

Combine like terms: -24 + 24 = 0
0 + 1t = -21 + 24
1t = -21 + 24

Combine like terms: -21 + 24 = 3
1t = 3

Divide each side by '1'.
t = 3

Simplifying
t = 3

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