I understand this question is really easy but the answer I found isn't one of the options and I have spent 30 minutes on this as
signment and if I get this question wrong I have to retake the whole thing pls help the answer I found is 210 but it's not on there pls help
1 answer:
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Hi!
<u>Given these two equations:</u>
We want to solve using the substitution method. Knowing that x is equal to y + 8, we can simply plug in 'y + 8' in for x in the second equation, like so:
Combine like terms on both sides:
Subtract y from both sides:
Subtract 8 from both sides:
Now, we can simply plug the y value in to the first equation, and solve for x:
Simplify:
<u>Learn more about the substitution (and also elimination!) method here:</u>
