book Maths Puzzle Numerical Ability

What is an equation for the following?
1. Find the number that is 68 greater than 3 times the opposite.

2. The sum of two numbers is 15. Three times one of the numbers is 11 le

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book Other Question

A flagpole is secured on opposite sides by 2 guide wires, each of which is 5 ft longer than the pole. The distance between the points where the wires are fixed to the ground is equ what is a linear equation?
and how do u do it?
how is it set out on a page?