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In order to create a system of equations that has the same solution as the system
x+y=4
2x+y = 7
complete three steps.
1
Step 1: Multiply the equation x + y = 4 by _[blank A]__.
Step 2: Add the equations 2x + y = 7 and _[blank B]_.
Step 3: Write the new system of equations as _[blank C]__.
Match each blank with the system or statement that correctly fills in that blank.

Sagot :

Blank A is -2. Blank B is -2x-2y=-8. Blank C is y=1

#Step1

  • Multiply by -2

It will result -2x-2y=-8

#2

  • -2x-2y=-8

#3

add

  • -y=-1
  • y=1

Find x

  • x+1=4
  • x=3
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