Answer: to get the variable by itself on one side
Step-by-step explanation:
Answer:
95%
B
Interior angles of a triangle = 180°
3x°+3x+10°+4x-30°=180°
10x°-20°=180°
10x°=180°+20°
10x°= 200°
10x°/10=200°/10
x°=20°
Answer: 12 years
exponential decay