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A+b+c+d=770 a+b=c+d a-b=49 c-d=211 Find numbers.
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A+b+c+d=770
a+b=c+d
a-b=49
c-d=211
Find numbers.

User Walter Northwoods
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1 Answer

3 votes
a+b = c+d
a+b = 770/2 ( a+b+c+d = 770)
a+b = 385
c+d = 385

a+b+a-b = 385+49
2a = 434
a = 434/2
a = 217
a-b=49
217-49= b
b = 168

c+d+c-d = 385+211
2c = 596
c = 596/2
c = 298

c-d = 211
c-211= d
298-211 = d
d = 87

Therefore, a=217, b=168, c=298, d=87

User Rajim
by
8.0k points
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