Question

Solve the system by substitution.
y=4x+3
y=7x

Answer 1

both are y

Answer 2

its 1,7

Answer 3

Since both equations are already solved for y, we can set them equal to each other and solve for x.

4x + 3 = 7x

Subtract 4x from both sides:

3 = 3x

Divide both sides by 3:

1 = x

Now substitute this value of x into one of the original equations to solve for y:

y = 7(1)
y = 7

Therefore, the solution to the system of equations is x = 1 and y = 7.

Answer 4

Apologies for the confusion. Let's solve the system of equations by substitution.

We have the equations:
y = 4x + 3
y = 7x

From the second equation, we can substitute the value of y in the first equation:

7x = 4x + 3

Subtract 4x from both sides:

3x = 3

Divide both sides by 3:

x = 1

Now, substitute this value of x into either of the original equations to solve for y:
y = 7(1)
y = 7

Therefore, the solution to the system of equations is x = 1 and y = 7.

Answer 5

Apologies again for the confusion. You are correct. The solution to the system of equations is x = 1 and y = 7.