(08.03) consider the following pair of equations:
y = 3x + 3
y = x − 1
explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form

I would naturally use the graphing method to solve this problem, but since it wants you to use substitution, I will show that.

Step 1: Choose an equation. Solve for x or y if necessary.

y = 3x + 3

Step 2: Plug in the solution for x or y into the other equation.

3x + 3 = x - 1
- 3 - 3

3x = x - 4
- x - x

2x = -4

2 2

x = -2

Step 3: Plug in the value you got from Step 2 into either equation.

y = 3(-2) + 3
y = -6 + 3
y = -3

Your final answer should be written as a coordinate pair: (-2,-3).

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.