(7t-21)+(t*4)=15

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Solution for (7t-21)+(t*4)=15 equation:


Simplifying
(7t + -21) + (t * 4) = 15

Reorder the terms:
(-21 + 7t) + (t * 4) = 15

Remove parenthesis around (-21 + 7t)
-21 + 7t + (t * 4) = 15

Reorder the terms for easier multiplication:
-21 + 7t + (4t) = 15

Combine like terms: 7t + (4t) = 11t
-21 + 11t = 15

Solving
-21 + 11t = 15

Solving for variable 't'.

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

Add '21' to each side of the equation.
-21 + 21 + 11t = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 11t = 15 + 21
11t = 15 + 21

Combine like terms: 15 + 21 = 36
11t = 36

Divide each side by '11'.
t = 3.272727273

Simplifying
t = 3.272727273

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