.5t+.9(20-t)=13.6

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Solution for .5t+.9(20-t)=13.6 equation:


Simplifying
0.5t + 0.9(20 + -1t) = 13.6
0.5t + (20 * 0.9 + -1t * 0.9) = 13.6
0.5t + (18 + -0.9t) = 13.6

Reorder the terms:
18 + 0.5t + -0.9t = 13.6

Combine like terms: 0.5t + -0.9t = -0.4t
18 + -0.4t = 13.6

Solving
18 + -0.4t = 13.6

Solving for variable 't'.

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

Add '-18' to each side of the equation.
18 + -18 + -0.4t = 13.6 + -18

Combine like terms: 18 + -18 = 0
0 + -0.4t = 13.6 + -18
-0.4t = 13.6 + -18

Combine like terms: 13.6 + -18 = -4.4
-0.4t = -4.4

Divide each side by '-0.4'.
t = 11

Simplifying
t = 11

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