Question

Ajudem nesta expressao!
A)6(4Z+2(+7(-5Z+3)=60

Answer 1

6(4z+2(+7(-5z+3)=60

6(4z+2(-35z+21)=60

6(4z-70z+42)=60

24z-420z+252=60

-396z=60-252

-396z=192

z= 192/-392 simplificando por 6

z= 32/66 simplificandopor 2

z=18/33 simplificandopor 3

z= 6 /11