Datrys Hafaliadau 2 Gam - Lefel 2 (efo negatifs)

Datryswch yr hafaliad 9y - 6 = -24

• y = -2
• y = -3
• y = 9
• y = 1
• y = 6

Datryswch yr hafaliad 8n + 16 = 8

• n = 0
• n = -1
• n = 8
• n = 2
• n = 16

Datryswch yr hafaliad 11p - 30 = 124

• p = 13
• p = 14
• p = 11
• p = 17
• p = 30

Datryswch yr hafaliad 2z + 10 = 40

• z = 14
• z = 2
• z = 15
• z = 18
• z = 10

Datryswch yr hafaliad 2𝑥 - 20 = -28

• 𝑥 = -5
• 𝑥 = 2
• 𝑥 = -4
• 𝑥 = -1
• 𝑥 = 20

Datryswch yr hafaliad 6𝑥 + 9 = 93

• 𝑥 = 15
• 𝑥 = 6
• 𝑥 = 17
• 𝑥 = 14
• 𝑥 = 9

Datryswch yr hafaliad 5y - 19 = -59

• y = -7
• y = 5
• y = -5
• y = -8
• y = 19

Datryswch yr hafaliad 9k + 30 = 183

• k = 16
• k = 9
• k = 30
• k = 20
• k = 17

Datryswch yr hafaliad 12t - 30 = 138

• t = 15
• t = 12
• t = 17
• t = 30
• t = 14

Datryswch yr hafaliad 2a + 13 = 9

• a = -2
• a = -1
• a = 2
• a = 1
• a = 13