1146377
Answered

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-9y-2=x
4x-3y=31
Solve by substitoution

Sagot :

ridmitharuka

Answer:

x=7

y=-1

Step-by-step explanation:

x=-9y-2--------(1)

4x-3y=31

4x=31+3y

x=31/4+3/4y-------(2)

x=-9y-2=31/4+3/4y  

   -9y-3/4y=31/4+2

   -39/4y=39/4

            y=-1

substitute in 1

(-9*(-1))-2=x

x=7

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