SOLUTION: Solve the folling 2 x 2 systems using substitutions
y= 1/2x + 10
y= 5x +1
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Question 72311: Solve the folling 2 x 2 systems using substitutions
y= 1/2x + 10
y= 5x +1
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
Y=5X+1
5X+1=1/2X+10
5X-1/2X=10-1
4.5X=9
X=9/4.5
X=2 ANSWER. NOW SUBSTITUTE 2 FOR X & SOLVE FOR Y
Y=5*2+1
Y=10+1
Y=11 ANSWER.
PROOF
11=1/2*2+10
11=1+10
11=11
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