book Maths Puzzle Numerical Ability

Solve for x:

1 1 22
——————— + ——————— = —————————
x - 4 x + 4 x² - 16</PRE>

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book Other Question

WHAT IS THE GREATEST POSSIBLE SUM YOU CAN FIND?
RECORD YOUR RESULTS IN TRIANGLE 6 PROVIDED.
ineed help! i really need step-by-step instructions on how to solve equations, i almost cant do them at all and i have a test coming up. i most need help in long ones and ones with fractions such as 10(y+2)divided by seven =2y-4