Answer:
4x=20 and x+7=19
Explanation:
4x=20. To solve this you divide both sides by 4 and get x=5.
x+7=19. To solve this you subtract both sides by 7 and get x=12
x+3=6
x=3 (subtract 3)
3x=9
x=3 (divide 3)
7.2m questions
9.7m answers