Sagot :
Answer:
B.
- x= 16
- x= 31/3
- x= 4
- x= 9
C.
- Possible values
- x¹= 9
- x²= 10
- x³= 11
2. Possible values
- x¹= 5/4
- x²= 1
- x³= 5/6
Step-by-step explanation:
B.
- x+2=18
- x= 18-2
- x= 16
2. 3x-5= 26
- 3x= 26+5
- 3x/3= 31/3
- x= 31/3
3. 5x= 20
- 5x/5= 20/5
- x= 4
4. 2(x-3)= 12
- 2x-6= 12
- 2x= 12+6
- 2x= 18
- 2x/2= 18/2
- x= 9
C.
- x+2> 10
- x+2 -2>10-2
Solut'n: x>8
2. 3x-1< 4
- 3x-1 +1< 4+1
- 3x/3< 5/3
Solut'n: x< 5/3