Question

rapid va rog ! ofer coroana celui ce ma ajuta !​

Answer 1

Explicație pas cu pas:

1) a)X+37=41

4+37=41(DA)

b)3X-2=10

3×4-2=

12-2=10(DA)

c)X:(-2)=2

4:(-2)=2(DA)

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2) a)X+3/2=2

1/2+3/2=4/2=>2 (DA)

b)1,5-X=1

15/10-1/2(amplificam cu 5)

15/10-5/10=10/10=>1 (DA)

c)2 1/2+X=2

5/2+1/2=6/2=>3 (NU)

--------------------------

5) a)X+7=11

X=11-7

X=4

b)X-8=17

X=17+8

X=25

c)X+4=17

X=17-4

X=13

d)X-5=14

X=14+5

X=19

e)15+X=8

X=8-15

X=-7

f)X-2=-7

X=-7+2

X=-5

g)X+31=9

X=9-31

X=-22

h)X-6=-5

X=-5+6

X=1