exam Maths Puzzle Numerical Ability

Could you please assist and solve this equation using the substitution method and also tell if it is independent, inconsistent, or dependent? Thank you.

3y = x + 5
3x - 9y = 1

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exam Other Question

4. A moving company is looking to purchase a truck to expand their business. The company is in a city where the sales tax is 8%. There is also a $84 title and registration fee to p Can you please help me understand the rules and format for this type of math?

(6x^2-4x+7)+(2x^2-3x-9)=

I tried this one,but i cant figured it out?

6x-(4x-5)=13
6x+(4x+5)=13