-7t+3=2t+21

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Solution for -7t+3=2t+21 equation:


Simplifying
-7t + 3 = 2t + 21

Reorder the terms:
3 + -7t = 2t + 21

Reorder the terms:
3 + -7t = 21 + 2t

Solving
3 + -7t = 21 + 2t

Solving for variable 't'.

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

Add '-2t' to each side of the equation.
3 + -7t + -2t = 21 + 2t + -2t

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

Combine like terms: 2t + -2t = 0
3 + -9t = 21 + 0
3 + -9t = 21

Add '-3' to each side of the equation.
3 + -3 + -9t = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -9t = 21 + -3
-9t = 21 + -3

Combine like terms: 21 + -3 = 18
-9t = 18

Divide each side by '-9'.
t = -2

Simplifying
t = -2

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