Question

1 Determinati termenul necunoscut :
a) x +1921 =4932-871 =
b) 5873-x =8004-4978 =
Please !!!!!:)

Answer 1

intr-o ecuatie exista doar un semn de egal!!!
a) x+1921=4061
x=4061-1921
x=2140

b) 5873-x=3026
x=5873-3026
x=2847

Answer 2

$a).x+1921=4932-871 \\ x=4932-871-1921 \\ x=2140 \\ b).5873-x=8004-4978 \\ -x=8004-4978-5873 \\ -x=-2847 \\ x=2847$