4t+7=2t-21

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Solution for 4t+7=2t-21 equation:


Simplifying
4t + 7 = 2t + -21

Reorder the terms:
7 + 4t = 2t + -21

Reorder the terms:
7 + 4t = -21 + 2t

Solving
7 + 4t = -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.
7 + 4t + -2t = -21 + 2t + -2t

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

Combine like terms: 2t + -2t = 0
7 + 2t = -21 + 0
7 + 2t = -21

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

Combine like terms: 7 + -7 = 0
0 + 2t = -21 + -7
2t = -21 + -7

Combine like terms: -21 + -7 = -28
2t = -28

Divide each side by '2'.
t = -14

Simplifying
t = -14

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