For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you subs titute into the second equation? −x + 2y = −6
3x + y = 8
1 answer:
First, we write the first equation where the left side contains x and y in the right side. We do as follows: x = 2y + 6 You, then substitute the equation to the second one. 3(2y + 6) + y = 8 6y + 18 + y = 8 7y = -10 y = -10/7 x = 22/7
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