exam Maths Puzzle Numerical Ability

2. Form each of the following:
• A linear equation in one variable
• A linear equation in two variables
• A quadratic equation
• A polynomial of three terms
• An exponential function
• A logarithmic function

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exam Other Question
solve the equation ln(x+5)-ln(3)=ln(x-3)

a. 2.5
b. 4.5
c. 5
d. 7 2(a-4)+4=5(9-a)