Question

(08.03)A set of equations is given below:
Equation A: y = x + 1
Equation B: y = 4x + 5
Which of the following steps can be used to find the solution to the set of equations?
A. x + 1 = 4x + 5
B. x = 4x + 5
C. x + 1 = 4x
D. x + 5 = 4x + 1

Answer 1

Answer:

A

Step-by-step explanation:

y= x+1 at the same time y=4x+5

x+1= 4x+5, so answer is A

Answer 2

Answer:

A. x+1= 4x+5

Step-by-step explanation:

To solve the set of equation we can use substitution method.

Here the given set of equations are

Equation A : $y=x+1$

Equation B :$y=4x+5$

Now in substitution method we substitute y in terms of x from

first equation in to 2nd equation.

In other words we can also say that we equate both equations

so we have

$y=x+1 = 4x+5$

or we can also say that

$x+1= 4x+5$

hence the correct option is option A