exam Maths Puzzle Numerical Ability

Seven times some number added to 4 amounts to -20 added to the product of 3 and the number.

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exam Other Question

Determine the equation of each line. Write the answers in standard form using only integers as the coefficients.

The line through (0,9) that is parallel to the line 3x+5y=15 Solve: 2^(2x+1) = 3^(2x+2)