exam Maths Puzzle Numerical Ability

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?

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exam Other Question

Angle A and angle B are supplementary angles and angle A is 15 degrees less than four times angle B. Find the 2 angles. graph y=f(x)=logbase3x by converting to expoential form and using selected values.