x=9 because the triangle is equilateral which means every side is equal to 60. When you do the math you get 7x-3=60 which is 7x=63 and 63/7=9
Answer: -1>4
Step-by-step explanation:
Five out of every nine pencils are yellow. You can make a fraction for this:

You have 45 pencils. To find the amount of yellow pencils, multiply the fraction by 45. First set up the equation:

Make 45 as a fraction so that you'll be multiplying fractions together. It will also make it easier.
To write a whole number as a fraction, <em>ALWAYS</em> make the whole number the denominator and 1 as the numerator.

Here is the "new equation":

Multiply. You multiply the numerators and denominators together.

That means <u>25</u> pencils are yellow
Answer:
x=-4
Step-by-step explanation:
7-x=3
x=3-7
x=-4