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mustachegirl311
19.07.2019 •
Mathematics
Solve 2x-3y=5 x=4y+5 using the substitution method
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Ответ:
Substitute x=4y+5 into the first equation
2(4y+5)-3y=5
8y+10-3y=5
Subtract both sides by 10
5y=-5
Divide both sides by 5
y=-1
Now that we have a value of y we can put that value into any equation and we will get the value of x
I will do it to both equations to prove it
2x-3(-1)=5
2x+3=5
Subtract both sides by 3
2x=2
Divide both sides by 2
x=1
x=4(-1)+5
x=1
So your final answer is x=1 and y=-1
Ответ:
Ответ: