Question

2 ori {12+3ori[60-3 ori (27-4ori3)]}-5x=7

Answer 1

2·{12+3·[60-3·(27-4·3)]}-5x=7

2·[12+3·(60-3·15)]-5x=7

2·[12+3·(60-45)]-5x=7

2·(12+3·15)-5x=7

2·57-5x=7

114-5x=7

114-7=5x

107=5x

x=107:5

x=21,4

daca ai scris problema bine acesta este rezultatul