-7(2t+5)=-21

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Solution for -7(2t+5)=-21 equation:


Simplifying
-7(2t + 5) = -21

Reorder the terms:
-7(5 + 2t) = -21
(5 * -7 + 2t * -7) = -21
(-35 + -14t) = -21

Solving
-35 + -14t = -21

Solving for variable 't'.

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

Add '35' to each side of the equation.
-35 + 35 + -14t = -21 + 35

Combine like terms: -35 + 35 = 0
0 + -14t = -21 + 35
-14t = -21 + 35

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

Divide each side by '-14'.
t = -1

Simplifying
t = -1

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