5t+6*(.7-t)=4

Solution for 5t+6*(.7-t)=4 equation:

Simplifying
5t + 6(0.7 + -1t) = 4
5t + (0.7 * 6 + -1t * 6) = 4
5t + (4.2 + -6t) = 4

Reorder the terms:
4.2 + 5t + -6t = 4

Combine like terms: 5t + -6t = -1t
4.2 + -1t = 4

Solving
4.2 + -1t = 4

Solving for variable 't'.

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

Add '-4.2' to each side of the equation.
4.2 + -4.2 + -1t = 4 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + -1t = 4 + -4.2
-1t = 4 + -4.2

Combine like terms: 4 + -4.2 = -0.2
-1t = -0.2

Divide each side by '-1'.
t = 0.2

Simplifying
t = 0.2