Х-69=6 и х+41=80 и 80-х=40 и 4+х=15

Question

Х-69=6 и х+41=80 и 80-х=40 и 4+х=15

Answer 1

75-69=6, 39+41=80, 80-40=40, 4+11=15

Answer 2

X-69=6
x=6+69
x=75

x+41=80
x=80-41
x=39

80-x=40
x=80-40
x=40

4+x=15
x=15-4
x=11