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777dan777 [17]
3 years ago
13

The sum of two numbers, x and y, is 12. The difference of x and two times y is 6. What are the values of x and y? x = 8, y = 4 x

= 10, y = 2 x = 18, y = -6 x = 20, y = -8
Mathematics
2 answers:
AveGali [126]3 years ago
7 0
X+y=12
x-2y=6

hmm
multiply 2nd equation by -1 and add to first

-x+2y=-6
<u>x+y=12 +</u>
0x+3y=6

3y=6
y=2
sub back
x+y=12
x+2=12
x=10

x=10, y=2
saveliy_v [14]3 years ago
5 0
X=10 will be a answer
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