y equals x plus 5 is the equation of a straight line in the x-y plane.
y=5-x
x=5 y=-3
x = 11 y = 16
Yes. This is a logical deduction based on substitution. if x + y = 7 and y = 5 then the value of 5 can be substituted for y to get x + 5 = 7 which can then be solved to get x = 2, meaning the point (2, 5) is a solution to the line x + y = 7 as it is on that line.
y equals x plus 5 is the equation of a straight line in the x-y plane.
the Y in the sentence X plus Y equals 5 is Y=3 or 2 if the X is 2 or 3
y=5-x
x = -2
(y-30)/5=x
If [ y = x + 2 ], then x is not -1 when y = 5.If [ y = x + 2 ],then when x = -1, y = 1,and when y = 5, x = 3.
If X+Y=5;X=4, then x=4 and y=1
2+5 = 7
x = 5, y = -2
10
x=1 y=7
x=5 y=-3