Question

Löse die Gleichungen und führe die Probe durch.

a)  6x-41-2x=69-6x

b) 3•(2y-5)=31-6y-28+10y

Answer 1

6·x - 41 - 2·x = 69 - 6·x

4·x - 41 = 69 - 6·x

10·x = 110

x = 11

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3·(2·y - 5) = 31 - 6·y - 28 + 10·y

6·y - 15 = 3 + 4·y

2·y = 18

y = 9