Question

1.Rozwiąż równania:(proszę np.tym sposobem:3y+4=2y-18

3y-2y=(-4)-18

1y=(-22))(bardzo prosze tym

sposobem)

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1.y-45=60

2,2x+17=x+48

3,3x-11=2x+2

4,-2y+5=10+3y

5,5x-4=4x+12

6,x-4=25

7,-5x-12=40-6x

8,-y-35=2y+70

9,4+3x=2+2x

10,8x-15=7x+36

pliss!!!

Answer 1

1. y-45=60

y=60+45

y=105

 

2. 2x+17=x+48

2x-x=48-17

x=31

 

3. 3x-11=2x+2

3x-2x=2+11
x=13

 

4. -2y+5=10+3y

-2y-3y=10-5

-5y=5 /:(-5)

y=-1

 

5. 5x-4=4x+12

5x-4x=12+4

x=16

 

6. x-4=25

x=25+4

x=29

 

7. -5x-12=40-6x

-5x+6x=40+12

x=52

 

8. -y-35=2y+70

-y-2y=70+35

-3y=105 /:(-3)

y=-35

 

9. 4+3x=2+2x

3x-2x=2-4

x=-2

 

10. 8x-15=7x+36

8x-7x=36+15

x=51

Answer 2

1. y-45=60 /+45

y=105

2. 2x+17=x+48 /-x

x+17=48 /-17

x=31

3. 3x-11=2x+2 /-2x

x-11=2 /+11

x=13

4. -2y+5=10+3y /-3y

-y+5=10 /-5

y=10

5. 5x-4=4x+12 /+4

5x=4x+16 /-4x

x=16

6. x-4=25 /+4

x=29

7. -5x-12=40-6x /+6x

x-12=40 /+12

x=52

8. -y-35=2y+70 /-2y

-3y -35=70 /+35

-3y=105 /:3

y=35

9. 4+3x=2+2x /-4

3x=-2+2x /-2x

x=2

10. 8x-15=7x+36 /-7x

x-15=36 /-15

x=36