👤

ma puteti ajuta la asta;
a) 2x-3= -7 ; b) 3x+2 = -10
c)7x-8= -22 ; d)7x+17=3


Răspuns :

a) 2x-3=-7
2x=-7+3
2x=-4
x=-4/2
x=-2
b) 3x+2=-10
3x=-10-2
3x=-12
x=-12/3
x=-4
c)7x-8=-22
7x=-22+8
x=-14/7
x=-2
d) 7x+17=3
7x=3-17
7x=-14
x=-14/7
x=-2
a) 2x-3=-7
2x=-7+3
2x=-4
x=-4:2
x=-2

b)3x+2=-10
3x=-10-2
3x=-12
x=-12:3
x=-4

c)7x-8=-22
7x=-22+8
7x=-14
x=-14:7
x=-2

d)7x+17=3
7x=3-17
7x=-14
x=-14:7
x=-2