How do you solve T+28+T=4(T-13)?

1 Answer
Jun 15, 2017

T = 40

Explanation:

T + 28 + T = 4 (T-13)

T + 28 + T = 4T - 52

T + T = 4T - 52 - 28

T + T - 4T = - 52 - 28

- 2T = - 52 - 28

- 2T = -80

T = -80 ÷ -2

color(blue)(T = 40

Now we can put 40 in for T to prove our answer.

40 + 28 + 40 = 4 (40 -13)

68 + 40 = 4 (40 -13)

68 + 40 = 4 xx 27

68 + 40 = 108

108 = 108