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Maths Puzzle
Numerical Ability
would you pleas walk me threw this problem 3(1+4n)- 2(5n-3)=25
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How do you solve these problems? z/20+1/12=z/15-1/10 and 4w+23/5=19-w/7
can you give me the standard form of:
(-7,-6),(5,4)
?