Answer:
109°
Step-by-step explanation:
x+48+23=180
x=180-71
x = 109°
Utilise the fact that angles in a triangle add up to 180 so,
→ Form an equation
x + 23 + 48 = 180
→ Simplify
x + 71 = 180
→ Minus 72 from both sides to isolate x
for question #1) 6 times n + 12 = 60
it works trust me
ps. im in high school in a GT math class
a is the answer