When solving simultaneous equations, how do you work out coordination points of the pair: x+y=8 and x=y?

Answer 1

This is NOT a simultaneous equation in the accepted sense since it is stated x=y

From inspection both x and y = 4

There can be no other values and the normal substitution method is not required.

In simultaneous equations you are working out the values of x and y which satisfy BOTH equations.

In the example you quote the ONLY coordinates are when x = 4, y = 4 therefore a series of coordinates may not be plotted in either of the equations given.

There are no variables.

Answer 2

y=x,x+y=8
==> x+x=8
==>x=4
==>x=4,y=4

Answer 3

x=y=4

Answer 4

0+8, 1+7, 2+6, 3+5, 4+4

Answer 5

if x=y then the first equation reads x+x = 8 so x=4. y is 4 also

Answer 6

First, use between the equations to sparkling up for x in words of y. case in element, utilising the first equation: 2x = 3y +2 --------> x = a million.5y + a million Then change for x into the 2d equation: 4(a million.5y +a million) - 7y = -3 -----------> 6y + 4 - 7y = -3 ---------> -y+4 = -3 Then sparkling up for y: -y + 4 = -3 --------> -y = -7 --------> y=7 Then change for y into both equation to sparkling up for x: 2x - 3y = 2 --------> 2x - 21 = 2 ---------> 2x = 23 --------> x = 11.5 in case you double verify utilising x = 11.5 and y = 7 for both equations, you'll see that this works.

Answer 7

something x + something y = 8
something x and something y are equal so the answer has to be half of 8 which as u know equals 4, i hope u understand xxx