Question

3(t + 4) -2(2t = 3) = -4

3t + 12 - 4t - 6 = -4
-t + 6 = -4
-t = -10
t = 10

Donny Answered: t = 22
Compare the answer with Donny. If he is wrong, conclude what misconception took place.

Answer 1

The answer is t = −17.5

Explanation:

It´s the answer because

3(t + 4)−2(2t = 3)= −4

3t + 12 −2(2t = 3) = −4

3t + 12 −2(2t/2t = 3/2)= -4

3t + 12 −2(t= 3/2)= −4

3t +12 −2⋅t= 3/2= −4

3t −2⋅t = 3/2 + 12 = −4

3t −2⋅t = 3/2 + 12 −12 = −4 −12

3t −2⋅t = 3/2 = −4 −12

3t −2⋅t = 3/2 = −16

3t -2t = 3/2 = −16

t = 3/2 = −16

t = 1.5 = −16

t = 1.5 −1.5 = −1.5 −16

t = −17.5