Question

Answer please friends your answer correctly for all question means I make has brand list​

Answer 1

Answer:

1. a-4b

2. 5y^2

3. 24

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Answer 2

Answer:

1.a-4b

2.5y^2

3.24

Step-by-step explanation:

1. (5a-7b)+(3b-4a)

open the brackets

=5a-7b+3b-4a

=5a-4a-7b+3b

=a-4b

2. 8y^2-3y^2

= 5y^2

3. x=3 (given)

15+3x

=15+3×3

=15+9

=24

HOPE IT HELPS....