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ladyivory26 ladyivory26
  • 21-05-2016
  • Mathematics
Answered

-x+y=4 3x-2y=-7 substitution

Verified Answer :

BreannaK BreannaK
  • 21-05-2016

-x+y=4 add x to both sides to get y=x+4
Plug x+4 into the equation for y to get 3x-2(x+4)=-7
Distribute to get 3x-2x-8=-7
Add 8 to both sides to get 3x-2x=1
Subtract 3x-2x to get x=1
the answer is 1

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