Question

sendo f(X)=2x-3/4, determine o valor de x para que: a)f(X)=3/2 b)f(X)=-1 c)f(X)=0 d)f(X)=-1/3

Answer 1

A) 2x-3/4=3/2
2x=3/2+3/4
2x=6/4+3/4
2x=9/4
x=9/4x1/2
x=9/8

B)2x-3/4=-1
2x=-1+3/4
2x=-4/4+3/4
2x=-1/4
x=-1/4x1/2
x=-1/8

C)2x-3/4=0
2x=3/4
x=3/4x1/2
x=3/8

D)2x-3/4=-1/3
2x=-1/3+3/4
2x=-4/12+9/12
2x=5/12
x=5/12x1/2
x=5/24