Answer:
Problem 6: x = 12
Problem 7: x = 10
Step-by-step explanation:
<u>Problem 6:</u>
39 + 4 + 7x + 53 = 180
39 + 4 + 7x + 53 - 39 - 4 - 53 = 180 - 39 - 4 - 53
7x / 7 = 84 / 7
x = 12
Answer: x = 12
<u>Problem 7:</u>
5x + 6x - 5 + 75 = 180
5x + 6x - 5 + 75 - 75 + 5 = 180 - 75 + 5
11x / 11 = 110 / 11
x = 10
Answer: x = 10
Answer:
-3
Step-by-step explanation:
3x+(2-4x)
3*5+(2-4*5)
3*5+(2-20)
3*5+(-18)
3*5-18
15-18
-3