2(6+1)-4(t-1)=0

Solution for 2(6+1)-4(t-1)=0 equation:

Simplifying
2(6 + 1) + -4(t + -1) = 0

Combine like terms: 6 + 1 = 7
2(7) + -4(t + -1) = 0

Multiply 2 * 7
14 + -4(t + -1) = 0

Reorder the terms:
14 + -4(-1 + t) = 0
14 + (-1 * -4 + t * -4) = 0
14 + (4 + -4t) = 0

Combine like terms: 14 + 4 = 18
18 + -4t = 0

Solving
18 + -4t = 0

Solving for variable 't'.

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

Add '-18' to each side of the equation.
18 + -18 + -4t = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -4t = 0 + -18
-4t = 0 + -18

Combine like terms: 0 + -18 = -18
-4t = -18

Divide each side by '-4'.
t = 4.5

Simplifying
t = 4.5