exam Maths Puzzle Numerical Ability

Rewrite the equation 2x-3y=-6 as a function of x

Please help me on this to solve it.
A function notation problem

Thanks

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exam Other Question

the equation for the area of a triangle is a=1/2bh. suppose the area of triangle DEF is 30 square inches.
1.)solve the equation for h
2.)state the independent and dependent varia Simplify by combining like terms
(rad)63) -2(rad)28) +5(rad)7 i thought i had it then i didnt please help.
Also am i entering the radical thing the right way? radical of 63 = (rad)63 ? is this ok?