SOLUTION: Solve each system by substitution
{y=x-1}
{x+y= -7}
Algebra.Com
Question 328871: Solve each system by substitution
{y=x-1}
{x+y= -7}
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1.
2.
Substitue eq. 1 directly into eq. 2,
Then from eq. 1,
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