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emilyrabbit
emilyrabbit emilyrabbit
  • 02-09-2014
  • Mathematics
Answered

this is for algebra 1


My two numbers add up to 12. Three times my first number plus twice my second number is 29.


Which two numbers is she thinking of?

Show your work.

Verified Answer :

TaylorBayley
TaylorBayley TaylorBayley
  • 02-09-2014

x+y=12 -- 1
3x+2y=29 -- 2

(1)x2
2x+2y=24 -- 1
(2)-(1)
x=5

Sub x into 1
x+y=12
5+y=12
y=7

Her two numbers are 5 and 7

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