Answer:
a = 5
Step-by-step explanation:
3(a - 4) + 1 = 9 - a Distribute the 3 into a-4
3a - 12 + 1 = 9 - a Combine like terms
[-12 and 1]
3a - 11 = 9 - a Add 11 to both sides to isolate 3a
+11 +11
3a = 20 - a Add a to remove it and have all a
+a +a
4a = 20 Divide by 4 to only have a
/4 /4
a = 5
Use a projector do you have one?
12x=-48 (divide 12 from both sides)
x=-4
10y-13y=30
-3y=30 (divide -3 from both sides)
-10=y
10x+14x=48
24x=48 (divide 24 from both sides)
x=2
Answer:
What picture?
Step-by-step explanation: