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Leviafan [203]
3 years ago
10

Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics
2 answers:
erica [24]3 years ago
8 0

Answer:

a) 3(3a + 2b)

b) 5c - 3d

Step-by-step explanation:

a) 4a + 7b + 5a - b

Lets arrange all like terms.

=  > 4a + 5a + 7b - b

=  > 9a + 6b

Taking 3 common from the terms,

=  > 3(3a + 2b)

b) 6c + 4d - c - 7d

Lets arrange all like terms.

=  > 6c - c + 4d - 7d

=  > 5c - 3d

makkiz [27]3 years ago
3 0

Answer:

9a + 6b and 5c - 3d

Step-by-step explanation:

(a)

4a + 7b + 5a - b ← collect like terms

= (4a + 5a) + (7b - b)

= 9a + 6b

(b)

6c + 4d - c - 7d ← collect like terms

= (6c - c) + (4d - 7d)

= 5c - 3d

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