Question

[(45:5+10x2-14)X3]:[(7x4-14:7):13+3]x a=63
tip strugure va rog! dau coroană.​

Answer 1

$((9 + 20 - 14) \times 3) \div ((28 - 2) \div 13 + 3) \times a = 63 \\ ((29 - 14) \times 3) \div (26 \div 13 + 3) \times a = 63 \\ (15 \times 3) \div (2 + 3) \times a = 63 \\( 45 \div 5) \times a = 63 \\ 9 \times a = 63 \\ a = 63 \div 9 \\ a = 7$

Answer 2

Răspuns:

a=7

Explicație pas cu pas:

[(45:5+10*2-14)*3]:[(7*4-14:7):13+3]x a=63

[(9+20-14)*3] : [(28-2):13+3]*a=63

(15*3): (26:13+3)*a=63

45:5*a=63

9*a=63

a=63:9

a=7