Answer:
Step-by-step explanation:
For number 11)
[tex]\frac{x+3}{4} = 1[/tex] cross multiply expressions
4 = 3+x subtract 3 from both sides
1 = x
for number 14)
[tex]\frac{x+8}{12} = 1[/tex] cross multiply expressions
x+8 = 12 subtract 8 from both sides
x = 4
for number 16)
[tex]\frac{8+x}{3} = 10[/tex] cross multiply expressions
8+x = 30 subtract 8 from both sides
x = 22
for number 19)
[tex]\frac{-9 + b}{32} = -1[/tex] cross multiply expressions
-9 + b = -31 add 9 to both sides
b = -22
