Question

Como resolver as equações
A)2×+1=6
B)x_8=13
C)2×+1=3×+4
D)5×+2×+5=×+3
E)2×+3×+2=×+5

Answer 1

a)2x=6-1
2x=5
x=5/2

b)x=13+8
x=21
c)2x-3x=4-1
-x=3(-1)
x=-3
d)5x+2x-x=3-5
6x=-2
x=-2/6(simplificando por 2)
x=-1/3
e)2x+3x-x=5-2
4x=3
x=3/4