Question

What is the solution of the system?

2x+y=15
x-y=3


(_,_)

Answer 1

×=4,y=7

Explanation:

y=x+3

2x +y =15

sub 2 into 1

2x +(x+3)=15

2x+x+3=15

3x+3=15

3x=15-3

3x=12

x=12÷3

x=4 #

sub x=4 into 1 equation

y = 4+3

y = 7 #

Answer 2

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