The difference of x and y is 14. The value of x is 3 more than twice the value of y. Write two equations and graph to find the value of x.
x = 25
x = 11
x = -17
x = 4
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OpenStudy (anonymous):
Please help me !!!!!!
OpenStudy (compassionate):
x - y = 14
x = 3 + 2y
OpenStudy (compassionate):
Now solve for x
OpenStudy (anonymous):
Lol. I dont know how to. That is why i put it on here
OpenStudy (compassionate):
x - y = 14
x = 3 + 2y
So we know x = 3 + 2y
So plug x into the first equation
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OpenStudy (anonymous):
Ill just guess Lol
OpenStudy (compassionate):
Don't just guess. Just plug x into the first equation. We know x is equal to 3 + 2y, so take x - y = 14 and just plug it in.
OpenStudy (anonymous):
It really doesnt make any sense
OpenStudy (compassionate):
Of course it makes sense. You're just not understanding it. What part are you having trouble with?
OpenStudy (anonymous):
\[x-y=14\]\[x=2y+3\]
subsitutes the value of x \[(2y+3)-y=14\]\[y+3=14\]\[y=11\]