-7(y+2t)-3(y+t)=

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

Simplifying
-7(y + 2t) + -3(y + t) = 0

Reorder the terms:
-7(2t + y) + -3(y + t) = 0
(2t * -7 + y * -7) + -3(y + t) = 0
(-14t + -7y) + -3(y + t) = 0

Reorder the terms:
-14t + -7y + -3(t + y) = 0
-14t + -7y + (t * -3 + y * -3) = 0
-14t + -7y + (-3t + -3y) = 0

Reorder the terms:
-14t + -3t + -7y + -3y = 0

Combine like terms: -14t + -3t = -17t
-17t + -7y + -3y = 0

Combine like terms: -7y + -3y = -10y
-17t + -10y = 0

Solving
-17t + -10y = 0

Solving for variable 't'.

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

Add '10y' to each side of the equation.
-17t + -10y + 10y = 0 + 10y

Combine like terms: -10y + 10y = 0
-17t + 0 = 0 + 10y
-17t = 0 + 10y
Remove the zero:
-17t = 10y

Divide each side by '-17'.
t = -0.5882352941y

Simplifying
t = -0.5882352941y