Question

Question in photo. The x and y entered are not correct but the equations are, I just don't know what to do after finding them

Answer 1

Solve simultaneous equations
x=3, and y=11

Answer 2

x = 3. y = 11

Explanation:

The two equations are two simultaneous equations, which can be solved by substitution, elimination or graphical method.

Elimination method:

The coefficients of 'x’ or ‘y’ need to be the same with opposite signs. The coefficients of ‘y’ will be focused:

(17x - y = 40) Multiplied by 4

(2x + 4y = 50) Multiplied by 1

68x - 4y = 160

2x + 4y = 50

In the net total, the ‘y’ terms will cancel each other out:

70x = 210

x =
`(210)/(70)`

x = 3

The calculated value of x is substituted in any of the equations to determine the value of y:

17(3) - y = 40

51 - y = 40

51 - y - 40 = 0

51 - 40 - y = 0

11 - y = 0

y = 11