Well the base can be 36 but you want to get it the lowest you can and then multiply that number with the numbers or equation you already have or had.
.
There's 180 degrees in a triangle so and the two angles and then subtract by 180
Answer:
x=36
Step-by-step explanation:
First rewrite equation then multiply each side by 36. 9x-36=4x+144.
then move the variable 9x-4x+36=144. Next subtract 9x and 4x ...5x=144+36.... 5x=180. Lastly you divide 180÷5 this your answer x=36
45 degree angle I’m pretty sure