Question

Y=−7x+3
y=−x−3
​
what is x
what is y

Answer 1

x1 y=-4

Explanation:

Answer 2

x = 1, y = - 4

Explanation:

Given the 2 equations

y = - 7x + 3 → (1)

y = - x - 3 → (2)

Substitute y = - x - 3 into (1)

- x - 3 = - 7x + 3 ( add 7x to both sides )

6x - 3 = 3 ( add 3 to both sides )

6x = 6 ( divide both sides by 6 )

x = 1

Substitute x = 1 into either of the 2 equations for value of y

Substituting in (2)

y = - 1 - 3 = - 4