resolva as equações:
a) 3x + 2 = x + 5
b) 16x -52 = 4x -4
c)
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d)
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e)
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f)
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Soluções para a tarefa
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Resposta:
Explicação passo-a-passo:
a) 3x+2=x+5
3x-x=5-2
2x=3
x=3/2
b)16x-52=4x-4
16x-4x=-4+52
12x=48
x=48/12
x=4
c)7.(x-6)=21
7x-42=21
7x=21+42
7x=63
x=63/7
x=9
d) ainda estou tentando resolver. edito aqui quando terminar. ok?
e)x=3x/5-2
5x=3x-2
5x-3x=-2
2x=-2
x=-2/2
x=-1
f)4(x+2)=x+1.1
4x+8=x+1
4x-x=1-8
3x=-7
x= -7/3
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