exam Maths Puzzle Numerical Ability

Can you help me solve the equation for x
5-3(2x-7)=8-4x

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exam Other Question

{{{(1+sqrt(3))/(sqrt(3)-sqrt(2))}}} thanks for the help. Steven Torry took 6 tests, she had an average 97. First 5 tests had the same score. The last test had 12 points less. What was her last test score?