Question

1 math question MEDAL AND FAN!!!1

Consider the following set of equations: Equation A: y = −x + 5 Equation B: y = 6x − 2 Which of the following is a step that can be used to find the solution to the set of equations?

−x = 6x + 2

−x − 2 = 6x + 5

−x + 5 = 6x – 2

−x + 5 = 5x

Answer 1

@AloneS

Answer 2

@iGreen

Answer 3

Igreen left OS already

Answer 4

i know lol

Answer 5

but why?

Answer 6

What do you think the answer is?

Answer 7

C someone taught me and said it was C i understood it a little but they werent sure because to find the answer 6-2 and for the other one you do 5+x

Answer 8

You're correct, it is C. But you want to know why it's correct?

Answer 9

thanks mate!!!!

Answer 10

Basically, when you are trying to solve for variable(s), you want to isolate them.

Equation A: y = −x + 5

Equation B: y = 6x − 2

You can't solve for x or y, with both of them being there, we need to get rid of one of them

We see that y = -x + 5 , and y = 6x - 2

This means that -x + 5 = 6x - 2 is a true equation

Answer 11

okay

Answer 12

From there you can solve.

- x + 5 = 6x - 2

Add x to both sides

5 = 7x - 2

Add 2 to both sides

7 = 7x

Divide both sides by 7

1 = x

x = 1

Answer 13

Input back in

-(1) + 5 = 6(1) - 2

-1 + 5 = 6 - 2

4 = 4

Answer 14

x = 1