3-7t=-5t+3-21

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Solution for 3-7t=-5t+3-21 equation:


Simplifying
3 + -7t = -5t + 3 + -21

Reorder the terms:
3 + -7t = 3 + -21 + -5t

Combine like terms: 3 + -21 = -18
3 + -7t = -18 + -5t

Solving
3 + -7t = -18 + -5t

Solving for variable 't'.

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

Add '5t' to each side of the equation.
3 + -7t + 5t = -18 + -5t + 5t

Combine like terms: -7t + 5t = -2t
3 + -2t = -18 + -5t + 5t

Combine like terms: -5t + 5t = 0
3 + -2t = -18 + 0
3 + -2t = -18

Add '-3' to each side of the equation.
3 + -3 + -2t = -18 + -3

Combine like terms: 3 + -3 = 0
0 + -2t = -18 + -3
-2t = -18 + -3

Combine like terms: -18 + -3 = -21
-2t = -21

Divide each side by '-2'.
t = 10.5

Simplifying
t = 10.5

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