Question

Find the value of x, if $4x – 7 = 5

11th - 12th Class

Maths

Solution

102

4.0 (1 ratings)

( begin{aligned} sqrt[3]{4 x-7} &=5 quad Rightarrow(4 x-7)^{1 / 3}=5 Rightarrow & 4 x-7=(5)^{3} Rightarrow 4 x-7=125 Rightarrow & 4 x=132 end{aligned} Rightarrow x=33 )