1.4t+2.1=0.9t

Solution for 1.4t+2.1=0.9t equation:

Simplifying
1.4t + 2.1 = 0.9t

Reorder the terms:
2.1 + 1.4t = 0.9t

Solving
2.1 + 1.4t = 0.9t

Solving for variable 't'.

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

Add '-0.9t' to each side of the equation.
2.1 + 1.4t + -0.9t = 0.9t + -0.9t

Combine like terms: 1.4t + -0.9t = 0.5t
2.1 + 0.5t = 0.9t + -0.9t

Combine like terms: 0.9t + -0.9t = 0.0
2.1 + 0.5t = 0.0

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.5t = 0.0 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.5t = 0.0 + -2.1
0.5t = 0.0 + -2.1

Combine like terms: 0.0 + -2.1 = -2.1
0.5t = -2.1

Divide each side by '0.5'.
t = -4.2

Simplifying
t = -4.2