exam Maths Puzzle Numerical Ability

Solve.

A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial
that represents its perimeter

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exam Other Question

solve the inequality

-2k+12<30
Solve the following equations for the unknown.


1)6.2(x - 15.1) = 9.3(-x - 3.2)



2)x/3 - 7/8 = 2/5(x + 15/4)