Answer:
E. t - 2t - 3t =32, t=8
Step-by-step explanation:
A. 2x + 5 (x-1)= 9, X= 2 it's ok because
[tex]2x+5(x-1)=9\\ 2x+5x-5=9\\ 7x=14\\ x=2[/tex]
B. p - 3(p-5)= 10, p= 2.5 it's ok as well because
[tex]p-3(p-5)=10\\ p-3p+15=10\\ -2p=-5\\ p=\frac{-5}{-2} \\ p=2.5[/tex]
C. 4 y +3 y=28, y=4 also it's ok because
[tex]4y+3y=28\\ 7y=28\\ y=\frac{28}{7} \\ y=4[/tex]
E. t - 2t - 3t =32, t=8 it's not ok because
[tex]t-2t-3t=32\\-4t=32\\t=\frac{32}{-4} \\t=-8[/tex]
a (-) is missing!
