Answer:
x=84
Step-by-step explanation:
We know that the angles in a triangle are equal to 180.
39+57+x=180
96+x=180
x=84
Answer:
1500^2-800^2=1268.85
A=1268.85
1500+800=2300
2300-1268.85=1031.15
B=1031.15
Step-by-step explanation:
Brainliest?
4. 3x-27 = 90
3x = 63
x = 21
5. 2x+30 = 60
2x = 30
x = 15
X/X+5=-2
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