Question

1. 2x - 7= x + 2;
2. 3y+2y-8=0
3.(z+2)=3z+6
plssss va rog repedeee ,dau coroană,stele etc .va rog ​

Answer 1

Răspuns:

1.2x-x=2+7

x=2+7

x=9

2.5y-8=0

5y=8 / :5

y = 8 supra 5

3. z-3z=6-2

-2z=4 / : - 2

z = - 2

Answer 2

1. 2x - 7 = x + 2
2x - x = 2 + 7
x = 9

2. 3y + 2y - 8 = 0
5y = 8
y = 8/5

3. z + 2 = 3z + 6
z - 3z = 6 - 2
-2z = 4
-z = 2
z = -2