(3.5)t+(21-12)=15t+3*3

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Solution for (3.5)t+(21-12)=15t+3*3 equation:


Simplifying
(3.5) * t + (21 + -12) = 15t + 3 * 3

Combine like terms: 21 + -12 = 9
3.5t + (9) = 15t + 3 * 3
3.5t + 9 = 15t + 3 * 3

Reorder the terms:
9 + 3.5t = 15t + 3 * 3

Multiply 3 * 3
9 + 3.5t = 15t + 9

Reorder the terms:
9 + 3.5t = 9 + 15t

Add '-9' to each side of the equation.
9 + -9 + 3.5t = 9 + -9 + 15t

Combine like terms: 9 + -9 = 0
0 + 3.5t = 9 + -9 + 15t
3.5t = 9 + -9 + 15t

Combine like terms: 9 + -9 = 0
3.5t = 0 + 15t
3.5t = 15t

Solving
3.5t = 15t

Solving for variable 't'.

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

Add '-15t' to each side of the equation.
3.5t + -15t = 15t + -15t

Combine like terms: 3.5t + -15t = -11.5t
-11.5t = 15t + -15t

Combine like terms: 15t + -15t = 0
-11.5t = 0

Divide each side by '-11.5'.
t = 0

Simplifying
t = 0

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