15+b = 23 Subtract 15 from both sides b = 8
160
15
38
9/23 - 5/23 = 4/23.
23
3x + 8 = 23 Subtract 8 from both sides: 3x = 15 Divide both sides by 3: x = 5
7
23
15
8-3x=238-8-3x=23-8 subtract 8 from both sides-3x=15-3x/-3 = 15/-3 divide both sides by -3 to solve for xx = -5
-6 -15 = -21