Question

69426-435:(363:3-(bx2+6x4))+12345:5=71890. Afla-l pe b.

Answer 1

69426-435:(363:3-(bx2+6x4))+12345:5=71890.
69 426-435:(121-(b×2+24)]+ 2 469 = 71 890
69 426-435:(121-(b×2+24)] = 71 890- 2 469
69 426-435:(121-(b×2+24)] = 69 421
435:(121-(b×2+24)] = 69 426 - 69 421
435:(121-(b×2+24)] = 5
121-(b×2+24) = 435:5
121-(b×2+24) = 87
b×2+24 = 121-87
b×2+24 = 34
b×2 = 34-24
b×2 = 10
b = 10:2
b = 5