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3 years ago

5x + 3y =11 5x - 3y =-1

2 answers:

6 0

*ELIMINATION METHOD*

5x+3y=11
5x-3y=-1
—————
5x+3y=11
-5x+3y=1
—————
6y=12
y=2
—————
5x-3(2)=-1
5x-6=-1
5x=5
x=1

Coordinates: (1,2)

maw [93]3 years ago

5 0

Answer:

y=3 x=2/5

Step-by-step explanation:

5x + 3y =11

5x - 3y =-1

ok for the first one when 3y way positive the answer is positive and when it was negative the answer was negative meaning it is freater then 5x

the difference between the answer 11--1= 12 shows how much the difference between the negative and positive y is so 12 has to equal 4y

4y=12

so y has to be 3

and if y is 3 we plug it back into the equations

5x+3(3)=11

5x+9=11

5x=2

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