Question

1) 6X+3=4x+1
2) 3X-5=7X+11
3) 5X-4=3X-4
4) 7X-3X= 4X+1
Dau coroana​

Answer 1

1)

6x+3=4x+1

6x+4x=3+1

10x=4

x=2,5

2)

3x-5=7x+11

3x+7x=(-5)+11

10x=6

x=1,(6)

3)

5x-4=3x-4

5x-3x=4-4

2x=0

x=0

4)

7x-3x=4x+1

4x-4x=1

x=1

Answer 2

1)6x-4x+3=1=>2x+3=1/-3=>2x=-2/:2=>x=-1

2)3x-5=7x+11=>3x-7x-5=11=>-4x-5=11/+(-5)=>-4x=16/:(-4)=>x=-4

3)5x-4=3x-4=>5x-3x-4=-4=>2x-4=-4/+(-4)=>2x=-8/:2=>x=-4

4)7x-3x=4x+1=>4x=4x+1=>4x-4x=1=>0=1(ceea ce este fals)

Spor la teme :)