Question

Va rog urgent exercitiul 8 sau 7. Care îl stiti va rog urgent

Answer 1

(x:2+250:5):5=12
x:2+50=60
x:2=10
x=5






[(x:10)x5]:2-(100:5)=480
[(x:10)x5]:2-20=480
[(x:10)x5]:2=500
(x:10)x5=1000
x:10=200
x=2000

Answer 2

$8)x - nr.$

$x \div 10 \times 5 \div 2 - 100 \div 5 = 480$

$x \div 10 \times 5\div 2 - 20 = 480$

$x \div 10 \times 5 \div 2 = 480 + 20$

$x \div 10 \times 5\div 2 = 500$

$x \div 10 \times 5 = 500 \times 2$

$x \div 10 \times 5 = 1000$

$x \div 10 = 1000 \div 5$

$x \div 10 = 200$

$x = 200 \times 10$

$x = 2000$