Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
Answer
The solution set includes all numbers less than or equal to 199.There should be a closed circle at 199 then have an arrow pointing towards the left.Negative solutions do not make sense for the situation.
Step-by-step explanation:
The value of x when the triangle and the parallelogram have the same area is 6 units
<h3>The dimensions</h3>
The dimension of the parallelogram is given as:
The dimension of the triangle is given as:
<h3>Areas</h3>
The area of a shape is the amount of space it occupies
The area of the parallelogram is calculated as:

The area of the triangle is calculated as:


Both areas are equal.
So, we have:

Divide both sides by x

Subtract 4 from both sides

Hence, the value of x is 6 units
Read more about areas at:
brainly.com/question/2126265