Question

Rezolvati in Z ecuatiile:
a) 2x+4=-10
b) 10=7x-4
c) 6=4x-2
h)-7=4x+1
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Answer 1

Răspuns:

a) 2x+4=-10

2x=-14

x=-14:2

x=-7

b)10=7x-4

-7x =-4-10

-7x=-14

x=-14 : (-7)

x=2

c)6=4x-2

-4x=-2-6

-4x=-8

x=-8 : (-4)

x=2

h) - 7=4x+1

-4x=1+7

-4x=8

x=8 : (-4)

x= - 2