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

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asked Aug 28, 2017 31.6k views

1 Answer

Rajim · Answer 1 · 2017-09-01T20:34:43+0000

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

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

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