exam Maths Puzzle Numerical Ability

Solve: 2^(2x+1) = 3^(2x+2)

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exam Other Question

Choose the correct equation for 3x + 4y = 8 in slope intercept form.

y = (-3/4)x + 2

y = (4/3)x + 2

y = (-4/3)x - 2

y = -3x + 8
Find values for m and b in the following system so that the solution to the system is (-3, 4).

5x+7y = b
mx+y = 22