Answer:
x = -4
Step-by-step explanation:
combine like terms
-10x - 3 - 2.5x + 20 = 67
-12.5x + 17 = 67
subtract 17 from both sides of the equal sign
-12.5x = 50
divide -12.5 from both sides of the equal sign
u
it is undefined because its a vertical line.
Answer:c
expand the brackets
4x+4y + 2x +2z
6x + 4y + 2z
x=6
