exam Maths Puzzle Numerical Ability

Subtract. (4+1/3) - (1+1/4) =

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exam Other Question

identify the Properties of Equality that justify the indicated steps

2x-3 = 17
2x-3+3 = 17 +3
2x = 20
2x/2 = 20/2
x= 10 I need help with this...Please:)

I have to find the solution to the system of equations by the substitution method. Check your answers. Place your solution in the form (x,y), (a,b), (p,q), or (s,t).
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Number 2

x=4-4y
-x+2y=2