0.3t+1.4=4.2-0.1t

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Solution for 0.3t+1.4=4.2-0.1t equation: 


Simplifying
0.3t + 1.4 = 4.2 + -0.1t

Reorder the terms:
1.4 + 0.3t = 4.2 + -0.1t

Solving
1.4 + 0.3t = 4.2 + -0.1t

Solving for variable 't'.

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

Add '0.1t' to each side of the equation.
1.4 + 0.3t + 0.1t = 4.2 + -0.1t + 0.1t

Combine like terms: 0.3t + 0.1t = 0.4t
1.4 + 0.4t = 4.2 + -0.1t + 0.1t

Combine like terms: -0.1t + 0.1t = 0.0
1.4 + 0.4t = 4.2 + 0.0
1.4 + 0.4t = 4.2

Add '-1.4' to each side of the equation.
1.4 + -1.4 + 0.4t = 4.2 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + 0.4t = 4.2 + -1.4
0.4t = 4.2 + -1.4

Combine like terms: 4.2 + -1.4 = 2.8
0.4t = 2.8

Divide each side by '0.4'.
t = 7

Simplifying
t = 7

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