Question

Please help the ones that are circled

Answer 1

Explanation:

For number 11)

`(x+3)/(4) = 1` cross multiply expressions

4 = 3+x subtract 3 from both sides

1 = x

for number 14)

`(x+8)/(12) = 1` cross multiply expressions

x+8 = 12 subtract 8 from both sides

x = 4

for number 16)

`(8+x)/(3) = 10` cross multiply expressions

8+x = 30 subtract 8 from both sides

x = 22

for number 19)

`(-9 + b)/(32) = -1` cross multiply expressions

-9 + b = -31 add 9 to both sides

b = -22