Algebra Help! Thanks!?

Question

I need help with the steps of these problems and how to solve them for Y.

1.) (Y-32)(1/1.08) = 65

2.) 3Y/4 + 7 = 4.2Y - 13

3.) 78/Y - 13 = 43

Thanks a lot! I'll give best answer to whoever can help me with the steps to solve these.

Answer 1

1.) (Y-32)(1/1.08) = 65

(Y-32) = 65 / (1/1.08) = 65 * (1.08/1)

Y = 65(1.08) + 32 = 102.2

2.) 3Y/4 + 7 = 4.2Y - 13

7 + 13 = 4.2Y - 3Y/4

20 = Y (4.2 - 3/4)

20/ (4.2 - 3/4) = Y = 5.79...

3.) 78/Y - 13 = 43

78/Y = 43 + 13

78/Y = 56

78/56 = Y = 1.392...