Danieladumitra18ask
a fost răspuns

16x-11=7x+70;
3x+10=5x-70;
32x-1=16+15x;
2x-12+2x=3;
-3x+2=7x-8;
Ajutati-ma va rog frumos dau coroană​

Răspuns :

16x-11=7x+70
16x-7x=70+11
9x=81
x=81/9
x=9

3x+10=5x-70
3x-5x=-70-10
-2x=-80
x=-80/-2
x=40

32x-1=16+15x
32x-15x=16+1
17x=17
x=17/17
x=1

2x-12+2x=3
4x-12=3
4x=3+12
4x=15
x=15/4
x=3,75

-3x+2=7x-8
-3x-7x=-8-2
-10x=-10
x=-10/-10
x=1

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