exam Maths Puzzle Numerical Ability

2x+y=1
x-y=11

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exam Other Question

1/2x-2/3=-6 i need to kno how to solve this problem & others like it SQUARING AND SUBSTITUTION

4M+ 8SQUARE ROOT M -5=0

4M PLUS 8 SQUARE ROOT SIGN WITH M UNDER IT -5=0
solve






thanks