The sum of two numbers is 22 their difference is 4
2 answers:
Sum: 13+9=22
Difference: 13-9=4
x-y=4
x=4+y
x+y=22
4+y+y=22
4+2y=22
2y=18
y=9
x+y=22
x+9=22
x=13
Answer:
x=13
Step-by-step explanation:
ok so let x+y=22
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x and y are the 2 unkown Number
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x-y=4
their difference is 4
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add both equations
(x+y=22)
+(x-y=4)
------------------------------
y's cancel out
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2x=26
-----------------
x=13
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