Question

Ecuați de gradu 1 a)2x-5=10. b)3x-12=0 c)7x-42=0. e)8x-64=0. f)4x-16=0 g)5x-20=0 k)2x-4=12 l)4x-12=4. m)11x-1=10 n)12x-24=12.

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

a.7,5

b.4

c.6

e.8

f.4

g.4

k.8

l.4

m.1

n.3

Explicație pas cu pas:

a.2x-5=10

2x=10+5

2x=15

x=15 supra 2

x=7,5

b.3x-12=0

3x=12+0

3x=12

x=12:3

x=4

c.7x-42=0

7x=42+0

7x=42

x=42:7

x=6

e.8x-64=0

8x=64+0

8x=64

x=64:8

x=8

f.4x-16=0

4x=16+0

4x=16

x=16:4

x=4

g.5x-20=0

5x=20+0

5x=20

x=20:5

x=4

k.2x-4=12

2x=12+4

2x=16

x=16:2

x=8

l.4x-12=4

4x=4+12

4x=16

x=16:4

x=4

m.11x-1=10

11x=10+1

11x=11

x=11:11

x=1

n.12x-24=12

12x=36

x=36:12

x=3