How do I find the solution to a system of equations?

A triangle has one side that measures 12, another side that measures x, and the third side that measures 4 less than x. the perimeter is 26. which equation would use to find x

Gregorio made 2/5 quart of hot chocolate each mug holds 1/10 quart how many mugs are used for the hot chocolate

What would 5/10 simplify to

A pet store has 12 puppies, including 3 poodles, 5 terriers, and 4 retrievers. if rebecka and aaron, in that order, each select one puppy at random without replacement, find the probability that aaron selects a retriever, given that rebecka selects

Simplify the expression 2^3*16+24/4

Meg lives in Indianapolis and wants to visit her mom in Lima. She has been meaning to go to a chiropractor in Dayton, so she is wondering whether it makes sense to stop there on the way.

An advertisement states that a can of paint will cover 480 square feet. How many gallons of paint are needed to cover 1,680 square feet?

Mrs McDonald spent 24.65 at a yard sale on Saturday. on Sunday she went to another sales and spent 14.95 more than she did on Saturday. what is the total amount that Mrs McDonald spent on both yard sales

Linda purchase a prepaid phone card for $30. Long distance calls cost $.17 a minute using this card when do use her card. Linda use her card only to make a long distance call if the remaining credit on her card is $22.

Consider this equation: - 2x - 4 + 5x = 8 Generate a plan to solve for the variable. Describe the steps that will be used.