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Use the substitution method to solve the system of equations. Please help me get this question right

Use the substitution method to solve the system of equations. Please help me get this-example-1
User Delia
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1 Answer

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Answer: B (2,1)

You know what y is (x-1) so you substitute that for y in the other equation.

3x+ ((4)(x-1))=10

3x+4x-4=10

7x=14

x=2

Then put x=2 into y=x-1

y=2-1

y=1

User Pongahead
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