Question

4) Find four solution of linear equation 3x- 5y =30​

Answer 1

Answer:

Step-by-step explanation:

Let x=0 and solve for y (y-intercept)

3(0)-5y=30

0-5y=30

5y=30

5y/6=30/6

y=5

Your first solution is(5,0)

Let y=0 and solve for x. (x intercept)

3x-5(0)=1

3x-0=30

3x=30

3x/10=30/10

x=3

Your second solution is (3,0)

The next two points, I'm going to pick are letting x=-10 and x=10. I know that they will work out to be whole numbers, it takes practice to find the easiest points.

Let x=-10 and solve for y.

3(-10)-5y=30

-30-5y=30

30-30+30-30=-5

5y=-5

5y/5=5/5

y=0

Your third solution is: (-10,0)

Let x=10 and solve for y.

3(10)-5y=30

30+5y=130

-30+30+5y=-30-30

5y=-60

5y/5=-60/5

y=12

Your fourth solution is: (10,12)

HOPE THIS HELPS

Answer 2

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