Question

Rezolvarea ecuateleor...ma ajutati va rog;))multumesc_)

x+7=3; 16-x=-4; 6-x=15; 11-x=14; -2x=-5; -x+4=-9

Answer 1

x+7=3
x=7-3
x=4
6-x=15
x=15+6
x=21
11-x=14
x=14+11
x=25
-2x=-5
x=-5:-2
x=-2.5
-x+4=-9
-x=-9-4
x=-13