exam Maths Puzzle Numerical Ability

Solve each of the following systems of linear inequalities graphically.
3x - y (Less than or equal to) 6
x (greater than or equal to) 1
y (Less than or equal to ) 3

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exam Other Question

I understand simple absolute value, but I don't understand it when it is an equation. The problem is:
|x+2/5|=1/5

How do you figure it out, and then when you graph it on a num
Simplify and write the answer with all exponents positive.

2-1 power t-3 power s
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2-2 power s4 power t3 power