Mathematics
14 Online
OpenStudy (anonymous):
Help
Solve each system by elimination
-2-18y=2x
-4x=-9y-23
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OpenStudy (anonymous):
what r ur options?
OpenStudy (anonymous):
what do you mean
OpenStudy (anonymous):
do have any options in the answrs like (4,5)
or something
OpenStudy (anonymous):
oh no
OpenStudy (anonymous):
ok
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OpenStudy (anonymous):
now what you need to do is that rearrange the two equations in such a way that the x and y terms r on one side
OpenStudy (anonymous):
that's what im stuck on it
OpenStudy (anonymous):
okay first number the equations for easy reference
OpenStudy (anonymous):
-2-18y=2x
-4x=-9y-23
so for 1
-2x - 18y = +18 eqn 1
and for 2
14x + 9y = -23 eqn 2
OpenStudy (anonymous):
@glitterythings
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OpenStudy (anonymous):
how did you get that?
OpenStudy (anonymous):
get what
OpenStudy (anonymous):
the equations
OpenStudy (anonymous):
i have rearranged the equations
OpenStudy (anonymous):
I don't get how
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OpenStudy (anonymous):
@glitterythings
OpenStudy (anonymous):
?
OpenStudy (anonymous):
I just need to know how to rearrange them and to see what numbers can go into y
OpenStudy (anonymous):
can cross out y
OpenStudy (anonymous):
okay im ready to show you how to rearrange okay.
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OpenStudy (anonymous):
@ChiefArnav shouldnt the equations be 2x + 18y = -2 and 4x - 9y = 23
OpenStudy (anonymous):
okay
OpenStudy (anonymous):
yes ^^
OpenStudy (anonymous):
okay @Rohith15 thx for correcting my error
OpenStudy (anonymous):
okay @glitterythings
-2-18y=2x
so now get 2x on the right hand side
so 2x -2 - 18y
2x- 18y = 2
got this much
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OpenStudy (anonymous):
ohh okay
OpenStudy (anonymous):
now same for the second one do it and show
will not do evrything for you
OpenStudy (anonymous):
okay okay
OpenStudy (anonymous):
im really confused
OpenStudy (anonymous):
okay for the second one
-4x=-9y-23
moving y to the right hand side
so 14x + 9y = -23
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OpenStudy (anonymous):
okay I get it thanks!
OpenStudy (anonymous):
now solve for x
OpenStudy (anonymous):
@glitterythings its now 14x its -4x
OpenStudy (anonymous):
not*