3 years ago

Solve these simultaneous equations: 3x = y and x = y - 16

Mathematics

1 answer:

umka21 [38]3 years ago

3 0

Answer:

x=8

y=24

Step-by-step explanation:

3x=y

x=y-16

Substitute y for 3x

x=3x-16

Add 16 to each side

x+16=3x

Subtract x

16=2x

Divide each side by 2

8=x

y=3x=3×8=24

y=24

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