exam Maths Puzzle Numerical Ability

2x+3y=6 (for x)

Please explain.

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exam Other Question

6 squareroot5/18 squareroot5/9 2squareroot9/20 -2m=-48

So Im guessing your solving for the variable m?

Step by step
-2m=-48
Divide -2 by -2 and divide -48 by -2
That leaves you with:
m=24

Check:
-2(24)=-48
-48=-48