Question

Determina valuarea lui x din egalitatea:
7548:{2*[30+(4*x-12)+4]}=37
Va rog sa ma ajutați, dau coroana!

Answer 1

2*[30+(4*x-12)+4]=7548:37
2*[30+(4*x-12)+4]=204
30+(4*x-12)+4=204:2
34+(4*x-12)=102
4*x-12=102-34
4*x-12=68
4*x=68+12
4*x=80
x=80:4
x=20

Answer 2

2*[30+(4x-12)+4]=7548:37
2*[30+(4x-12)+4]=204
30+(4x-12)+4=204:2
30+(4x-12)+4=102
30+(4x-12)=102-4
30+(4x-12)=98
4x-12=98-30
4x-12=68
4x=68+12
4x=80
x=80:4
x=20