Răspuns :
3x+2=17
3x=15
x= 15/3
x=5
12+4x=176
4x=176-12
4x=164
x=164/4
x=41
218-7x=43
7x=218-43
7x=175
x=25
8x-3=21
8x=24
x=24/8
x=3
11x+8=63
11x=55
x=55/11
x=5
56+5x=806
5x=806-56
5x= 750
x=750/5
x=150
sper ca te-am ajutat
3x=15
x= 15/3
x=5
12+4x=176
4x=176-12
4x=164
x=164/4
x=41
218-7x=43
7x=218-43
7x=175
x=25
8x-3=21
8x=24
x=24/8
x=3
11x+8=63
11x=55
x=55/11
x=5
56+5x=806
5x=806-56
5x= 750
x=750/5
x=150
sper ca te-am ajutat