Question

Simplify and solve the following linear equations❤❤

Answer 1

Answer:

$(7) \: \: 3(t - 3) = 5(2t + 1) \\ \\ 3t - 9 = 10t + 5 \\ \\ - 7t = 14 \\ \\ t = - 2 \\ \\ \\ \\ (9) \: \: 3(5z - 7) - 2(9z - 11) = 4(8z - 13) - 17 \\ \\ 15z - 21 - 18z + 22 = 32z - 52 - 17 \\ \\ - 3z + 1 = 32z - 69 \\ \\ 35z = 70 \\ \\ z = 2 \\ \\ \\ \\ (10) \: \: 0.25(4f - 3) = 0.05(10f - 9) \\ \\ 25(4f - 3) = 5(10f - 9) \\ \\ 5(4f - 3) = 10f - 9 \\ \\ 20f - 15 = 10f - 9 \\ \\ 10f = 6 \\ \\ f =0 .6$

Answer 2

Answer:

• 3 (t-3)=5 (2t+1)

3t-9=10t+5

10t-3t=7t

5+9= 14

14/7=2t

• 3 (5z-7) -2 (9z-11)=4 (8z-13)-17

15z-21-18z-11=32z-52-17

(32+18-15)z=(-52-17+11+21)

50z=-37

sorry I was not able to do third one