exam Maths Puzzle Numerical Ability

Rewrite the equation 4x - 6y = -30 as a function of x

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exam Other Question

what is the linear combination of
2x-y=-3
-5x+y=9
would you also provide two more answers for me.
2x-3y=-16
x+3y=10
and
10x-5y=5
2x+5y=-5
thats all thanks for the help i realy need it! Any help with this word problem would be appreciated. thank you in advance.

A man goes into a grocery store and buys a grapefruit and a toy ball. A 7% tax is applied to the pr