lindsayeve22 lindsayeve22

15-10-2021
Mathematics

contestada

Solve the simultaneous equations
=
3x + 2y = 30
3x - y = 21

Solve the simultaneous equations 3x 2y 30 3x y 21 class=

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Ahisha0o0 Ahisha0o0

18-10-2021

Step-by-step explanation:

3x+2y-(3x-y)=30-21

3x+2y-3x+y=9

3y=9

y=3

3x-y=21

3x-3=21

3x=24

x=8

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