CHECK MY WORK-
SYSTEM OF EQUATIONS-

2x + y = 5
x − 2y = 10

y = 5 − 2x
x − 2(5 − 2x) = 10
x + 10 + 4x = 10
5x + 10 = 10
5x = 0
x = 0

2(0) + y = 5
y = 5

Question

CHECK MY WORK-
SYSTEM OF EQUATIONS-

2x + y = 5
x − 2y = 10

y = 5 − 2x
x − 2(5 − 2x) = 10
x + 10 + 4x = 10
5x + 10 = 10
5x = 0
x = 0

2(0) + y = 5
y = 5

akgorgeous · Answer

@mathmale help?

mathmale · Answer

You have found (0,5) as a possible solution.
Subst. these x- and y-coordinates into both of the given equations, one equation at a time, to determine whether or not the equation is then true.

alivejeremy · Answer

Mathmale 💎 - 💎

mathmale · Answer

If both equations are true, what does that tell you?

akgorgeous · Answer

there is no error?

akgorgeous · Answer

@steve816

triciaal · Answer

substitution ok
error on line 3   -2 * 5 = -10

mrnood · Answer

if x=0 and y=5

what is x-2y ?

Is this compatible with the question?

triciaal · Answer

with x = 4  y = 5 - 2*4 = -3

check  in equation 2  left x - 2y = 4-2*-3 = 4 + 6 = 10 =right so correct (4, -3)

akgorgeous · Answer

So I combined like terms incorrectly, it should have been 4x instead of 5x

triciaal · Answer

no

triciaal · Answer

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