-2t-2(3+7t)=-5.2-15.8t

Solution for -2t-2(3+7t)=-5.2-15.8t equation:

Simplifying
-2t + -2(3 + 7t) = -5.2 + -15.8t
-2t + (3 * -2 + 7t * -2) = -5.2 + -15.8t
-2t + (-6 + -14t) = -5.2 + -15.8t

Reorder the terms:
-6 + -2t + -14t = -5.2 + -15.8t

Combine like terms: -2t + -14t = -16t
-6 + -16t = -5.2 + -15.8t

Solving
-6 + -16t = -5.2 + -15.8t

Solving for variable 't'.

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

Add '15.8t' to each side of the equation.
-6 + -16t + 15.8t = -5.2 + -15.8t + 15.8t

Combine like terms: -16t + 15.8t = -0.2t
-6 + -0.2t = -5.2 + -15.8t + 15.8t

Combine like terms: -15.8t + 15.8t = 0.0
-6 + -0.2t = -5.2 + 0.0
-6 + -0.2t = -5.2

Add '6' to each side of the equation.
-6 + 6 + -0.2t = -5.2 + 6

Combine like terms: -6 + 6 = 0
0 + -0.2t = -5.2 + 6
-0.2t = -5.2 + 6

Combine like terms: -5.2 + 6 = 0.8
-0.2t = 0.8

Divide each side by '-0.2'.
t = -4

Simplifying
t = -4