- Como faço para resolver esta equação 2a-8+3 = a-9?

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Explain how the placement of ejecta can help determine the relative ages of craters? Consider f(x)=7-e^x A. Find the slope of the line tangent to the graph of f at the point where the graph crosses the x-axis B. Find the equation of the line tangent to the curve at this point? A rectangle has a length six inches less thank twice it’s width. If the perimeter of the rectangle is 54 inches, find the dimensions? Solve 4y−4x=16 solve for y? Titration of 17.50 mL of HCl solution requires 27.00 mL of 0.1100 M NaOH solution. What is the molarity of the HCl solution?