exam Maths Puzzle Numerical Ability

I need help with this problem.
{{{-x-(13+4x)=-3(5-9x)+2}}}

Read Solution (Total 0)

exam Other Question

Use either the fundamental counting principle or the permutation formulas (or both) to answer the following:

In how many different ways can you arrange the letters of the word COMPUTER taking 4 at a time?

Write the equation of the line which has y-intercept (0, 5) and is perpendicular to the line with equation y = -3x + 1