0.9t-0.1(t-0.2)=-1.8

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Solution for 0.9t-0.1(t-0.2)=-1.8 equation: 


Simplifying
0.9t + -0.1(t + -0.2) = -1.8

Reorder the terms:
0.9t + -0.1(-0.2 + t) = -1.8
0.9t + (-0.2 * -0.1 + t * -0.1) = -1.8
0.9t + (0.02 + -0.1t) = -1.8

Reorder the terms:
0.02 + 0.9t + -0.1t = -1.8

Combine like terms: 0.9t + -0.1t = 0.8t
0.02 + 0.8t = -1.8

Solving
0.02 + 0.8t = -1.8

Solving for variable 't'.

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

Add '-0.02' to each side of the equation.
0.02 + -0.02 + 0.8t = -1.8 + -0.02

Combine like terms: 0.02 + -0.02 = 0.00
0.00 + 0.8t = -1.8 + -0.02
0.8t = -1.8 + -0.02

Combine like terms: -1.8 + -0.02 = -1.82
0.8t = -1.82

Divide each side by '0.8'.
t = -2.275

Simplifying
t = -2.275

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