Answer:
7
x
−
5 y = − 110
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
x − y = 0 = difference
x + y = 4 = sum
Can be solved by the sum and difference rule (most of the time without pen and paper)
x=(sum+difference)/2=0+4/2=2
y=(sum-difference)/2=(4-0)/2=2
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