Question

solve each of the following equation.
please answer these all questions please
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Answer 1

a)7x+2=-19

⇒7x=-21

⇒x=-3

b)3x-1/3=5

⇒9x-1=15

⇒9x=14

⇒x=14/9

c)5x-4 =2

⇒5x=6

⇒x=6/5

d)-7x=21

⇒x=-3

e)18-7x=-3

⇒-7x=-21

⇒x=-3

f)3(x+4)=21

⇒x+4=7

⇒x=3

g)2x/3-3x/5=8

⇒10x-9x=120

⇒x=120

h)3x-9=5x-3

⇒-2x=6

⇒x=-3

i)3(x-3)=4(2x+1)

⇒3x-9=8x+4

⇒-5x=13

⇒x=-13/5