Question

resolva as equacoes:

a) 5=x+3

b)15=x+20

c)7=10=x

d)-7=-x+50

e)2x-3=15

f)-3x+3=9

g)4x-2= -18

h)5x-2=13

Quero os calculos tambem nao so as respostas

Answer 1

a) 5=x+3 ==> x = 5-3 ==> x = 2

b)15=x+20 ==> x = 15 - 20 ==> x = - 5

c)7=10+x ==> x = 7-10 ==> x= - 3

d)-7=-x+50 ==> x = 50+7 ==> x = 57

e)2x-3=15==> 2x = 15+3 ==> 2x=18 ==>x = 18/2==> x=9

f)-3x+3=9==> -3x=9-3 ==>-3x=6(-1) ==> 3x= -6 ==> x= - 6/3 ==> x = - 2

g)4x-2= -18 ==> 4x = -18+2 ==> 4x= -16==> x= -16/4 ==> x= - 4

h)5x-2=13 ==> 5x=13+2==> 5x = 15 ==> x=15/5 ==> x = 3