Question

Find x if (2/7)2×(2/7)-4=(2/7)2x-1​

Answer 1

Answer:

Step-by-step explanation:

$(\frac{2}{7})*2*(\frac{2}{7})-4=(\frac{2}{7})2x-1$

$(\frac{4}{49})*2-4=(\frac{2}{7})2x-1$

$(\frac{8}{49})-4=(\frac{2}{7})2x-1$

$(\frac{8-392}{49})=(\frac{2}{7})2x-1$

$(\frac{384}{49})=(\frac{2}{7})2x-1$

$(\frac{-384}{7})=2(2x-1)\\\\(\frac{-384}{7})=24x-2\\\\-384=7(4x-2)\\\\-384=28x-14)\\\\-384+14 = 28x\\\\370 = 28x\\\\x=13.2142857143$