Question

resolva: vale 20 pontoos
A) 4X+1=2X+9

B)3(X-1)=2X+5

C)X/4 + X/2 = 9

Answer 1

A) x=4
B) x=2
C) x= 10,5
caculos:
A) 4x - 2x = 1+9
2x=8
x=2/8
x=2
B)3x - 3= 2x + 5
3x-2x=2
x=2
C) 4/x + 2/x
x=10,5