Comparing salaries

Spouses compared salaries. Mrs. Janka found that a 20% higher salary than Mr Jaroslav. Together earned € 1,430. How much they earn each of them?

Correct result:

a =  780
b =  650


a=b + 20/100b
a+b = 1430

a=b + 20/100•b
a+b = 1430

100a-120b = 0
a+b = 1430

a = 780
b = 650

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