Answer:

Step-by-step explanation:

Answer:
7x=12
Step-by-step explanation:
8x+5=6x+19
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5
8x=6x+14
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6x
2x=14 Divided by 2 Equals x=7
Answer:
5. 540°
Step-by-step explanation:
m<a + m<c = 180°
m<h + m<f = 180°
m<k + m<m = 180°
Then m<a + m<c + m<h + m<f + m<k + m<m = 180° x 3 = 540°
Answer:
A Substitution
Step-by-step explanation:
Trust me were doing this in math