Răspuns :

Răspuns:

Coroana?

Explicație pas cu pas:

[tex]2) 190-4x*(15+28-35)+64=7*3+2*8-3*9\\190-4x*8+64=21+16-27\\190-32x+64=10\\254-32x=10\\-32x=10-254\\-32x=-244\\x=\frac{61}{8}[/tex][tex]3) 3(6*7-5*6-72:8)-2(64:8+3*4-4*4)+(42:6-16:8)\\3(42-30-9)-2(8+12-16)+(7-2)\\3*3-2*4+5\\9-8+5\\6[/tex][tex]4) (a*5):2=40:4\\20a=80\\a=\frac{80}{20}\\a=4\\ (\frac{1}{3}b)*6=48\\ b*2=48\\2b=48\\\\b=24\\[/tex]