3(5t-7)-7=77

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Solution for 3(5t-7)-7=77 equation:


Simplifying
3(5t + -7) + -7 = 77

Reorder the terms:
3(-7 + 5t) + -7 = 77
(-7 * 3 + 5t * 3) + -7 = 77
(-21 + 15t) + -7 = 77

Reorder the terms:
-21 + -7 + 15t = 77

Combine like terms: -21 + -7 = -28
-28 + 15t = 77

Solving
-28 + 15t = 77

Solving for variable 't'.

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

Add '28' to each side of the equation.
-28 + 28 + 15t = 77 + 28

Combine like terms: -28 + 28 = 0
0 + 15t = 77 + 28
15t = 77 + 28

Combine like terms: 77 + 28 = 105
15t = 105

Divide each side by '15'.
t = 7

Simplifying
t = 7

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