exam Maths Puzzle Numerical Ability

graph y=f(x)=logbase3x by converting to expoential form and using selected values.

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exam Other Question

THE EQUATION: 2(X-2)=X+3

FIRST STEP IN SOLVING: 2X-2=X+3

WRITE A CLEAR EXPLANATION OF WHAT ERROR HAS BEEN MADE. WHAT COULD BE DONE TO AVOID THIS ERROR? My teacher came up with this problem.
You must multiply the matrices.

[ 2 0 1] x [-2 3]

[-3 4 0] x [4 -1]

x [