I need 100% on this quiz!
The sum of two numbers is 44. The second number is 4 less than three times the first number. Let x represent the first number and let y represent the second number. If the table will be used to guess and check, what should the equation be at the top of the last column?

1. y=3-4x

2. y=4x-3

3. y=4-3x

4. y= 3x-4

(2,5)

Step-by-step

Since we are given

y

=

4

x

−

3

we can substitute this into the other equation and solve for x.

⇒

2

(

4

x

−

3

)

−

3

x

=

4

distributing.

8

x

−

6

−

3

x

=

4

add 6 to both sides and simplify.

5

x

−

6

+

6

=

4

+

6

⇒

5

x

=

10

To solve for x, divide both sides by 5

5

x

5

=

10

5

⇒

x

=

2

We can now substitute x = 2 into y = 4x - 3 to find y.

x

=

2

→

y

=

(

4

×

2

)

−

3

=

8

−

3

=

5

Step-by-step explanation:

3 times the first number = 3x

4 less than 3 times the first number = 3x -4

y = 3x -4

just get this app called photo math it should be able to do those