Question

resolva as equações
a)2x+6x/2=15
b)x+3x/2=4
c)x/2+x/3=5

Answer 1

Oi 

a) 

(2x + 6x)/2 = 15
8x = 30
x = 30/8 = 15/4

b)

(x + 3x)/2 = 4
4x = 8
x = 8/4 = 2

c)

x/2 + x/3 = 5

3x/6 + 2x/6 = 30/6

5x = 30
x = 30/5 = 6 

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