(1-3)7=6t+21

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Solution for (1-3)7=6t+21 equation:


Simplifying
(1 + -3) * 7 = 6t + 21

Combine like terms: 1 + -3 = -2
(-2) * 7 = 6t + 21

Multiply -2 * 7
-14 = 6t + 21

Reorder the terms:
-14 = 21 + 6t

Solving
-14 = 21 + 6t

Solving for variable 't'.

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

Add '-6t' to each side of the equation.
-14 + -6t = 21 + 6t + -6t

Combine like terms: 6t + -6t = 0
-14 + -6t = 21 + 0
-14 + -6t = 21

Add '14' to each side of the equation.
-14 + 14 + -6t = 21 + 14

Combine like terms: -14 + 14 = 0
0 + -6t = 21 + 14
-6t = 21 + 14

Combine like terms: 21 + 14 = 35
-6t = 35

Divide each side by '-6'.
t = -5.833333333

Simplifying
t = -5.833333333

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