Room 5 Algebra

2a + 3b + 5a =

• 7a + 3b

• 10ab

• 10 a + 3b

• 7a + 5b

Answer explanation

2a + 3b + 5a = 7a + 3b

6a + 5 = 29

• a = 3

• a = 4

• a = 5

• a = 6

Answer explanation

6a + 5 = 29

6 x 4 + 5 = 29

3p + 2b + p + 4b + 6p =

• 3p + 6b

• 9p + 6b

• 10p + 6b

• 5p + 11p

5c - 2c + 10d - 5d

• 7c + 15d

• 3c + 5d

• 8c + 8d

• 7c - 5d

19 - a = 5

• a = 12

• a = 13

• a = 14

• a = 15

Answer explanation

19 - 14 = 5

7a - 10 = 25

• a = 3

• a = 4

• a = 5

• a = 6

2a + 5a = 70

• a = 5

• a = 9

• a = 10

• a = 20

12a - 4 = 68

• a = 6

• a = 7

• a = 8

• a = 9

3a + 7b - 2b + 10a =

• 13a + 7b

• 13a + 9b

• 13a - 5b

• 13a + 5b

3a = 36

• 10

• 11

• 12

• 13

Answer explanation

3 x 12 = 36