Question

Pls help mathsssssssss

Answer 1

x=4.5cm, y=1.5cm

Explanation:

2(3x-2y)=21 ⇒6x-4y=21

4(x+y)=24 ⇒x+y=6 ⇒ x=6-y

put x=6-y into 6x-4y=21, we have

6(6-y)-4y=21 ⇒ 36-6y-4y=21 ⇒ -10y=-15 ⇒y=1.5cm

x=6-y=4.5cm