The equation 9 y minus 12 x = 36 is written in standard form. What is the first step when writing an equivalent equation which solves for y? Divide both sides of the equation by 12.
Multiply both sides of the equation by 12.
Add 12x to both sides of the equation.
Subtract 12x from both sides of the equation.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Having a hard time understanding this question (see attachment).

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet