Solve for x 19 20 21 22 139 132 24 23a 5 12x 17 2115 Solutio

Solve for x 19) 20) 21) 22) +139 132\" 24) 23a -5 12x +17 211+5

Solution

3.

4x = 112
x = 28
y = 4x = 112

4.

5y - 3 = x
x+72 = 180
x = 108
5y-3 = 108
5y = 111
y = 111/5 = 22.2

19. 21x+6 = 90
21x = 84
x=4

20. 75 = 11x-2
11x = 77
x = 7

21) 60 = 8x-4
64 = 8x
x=8

22) x+139 = 132
x = -7

23) -1+14x = 12x+17
2x = 18
x=9

24) 23x-5 = 21x+5
2x = 10
x=5