Question

Please help..............

Answer 1

(18)

let p represent pouches, then

3p + 3 = 9 ( subtract 3 from both sides )

3p = 6 ( divide both sides by 3 )

p = 2 → 2 coins in each pouch

(19)

4p + 1 = 2p + 7 ( subtract 2p from both sides )

2p + 1 = 7 ( subtract 1 from each side )

2p = 6 ( divide both sides by 2 )

p = 3 → 3 coins in each pouch

(21)

3x + 4 = 10 ( subtract 4 from each side )

3x = 6 ( divide each side by 3 )

x = 2

(22)

6x + 3 = 4x + 11 (subtract 4x from each side )

2x + 3 = 11 ( subtract 3 from each side )

2x = 8 ( divide each side by 2 )

x = 4

(23)

6x - 3 = 11 ( add 3 to both sides )

6x = 14 ( divide both sides by 6 )

x =
`(14)/(6)` =
`(7)/(3)`

(24)

- 3x + 5 = 7 ( subtract 5 from both sides )

- 3x = 2 ( divide both sides by - 3 )

x =
`(2)/(-3)` = -
`(2)/(3)`