And it's elimination using addition and subtraction

x-y=1

x+y=3

Question

Mathematics

Penelope

21 February, 09:07

And it's elimination using addition and subtraction

x-y=1

x+y=3

+4

Answers (2)

Know the Answer?

Petty · Answer 1

X-y=1 ... > x=1+y

(1+y) + y = 3

1+y+y = 3

1+2y = 3

2y=3-1=2 ... >y = 2/2=1

Y=1

X-y=1

X-1=1 ... >x=1+1 = 2

X=2. Y=1

Joshua Potter · Answer 2

Get one x+y=3 to y=x+3 and plug it into x-y=1 and you get x - (x+3) = 1. Destitute the x and solve. Once you get what x equals plug it to to either equation for the value of x and solve for y

And it's elimination using addition and subtractionx-y=1x+y=3

And it's elimination using addition and subtraction

x-y=1

x+y=3