7t-21=2t-18+2t

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Solution for 7t-21=2t-18+2t equation:


Simplifying
7t + -21 = 2t + -18 + 2t

Reorder the terms:
-21 + 7t = 2t + -18 + 2t

Reorder the terms:
-21 + 7t = -18 + 2t + 2t

Combine like terms: 2t + 2t = 4t
-21 + 7t = -18 + 4t

Solving
-21 + 7t = -18 + 4t

Solving for variable 't'.

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

Add '-4t' to each side of the equation.
-21 + 7t + -4t = -18 + 4t + -4t

Combine like terms: 7t + -4t = 3t
-21 + 3t = -18 + 4t + -4t

Combine like terms: 4t + -4t = 0
-21 + 3t = -18 + 0
-21 + 3t = -18

Add '21' to each side of the equation.
-21 + 21 + 3t = -18 + 21

Combine like terms: -21 + 21 = 0
0 + 3t = -18 + 21
3t = -18 + 21

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

Divide each side by '3'.
t = 1

Simplifying
t = 1

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