1.

2.

3.

1. Start
2. Subtract 7 from both sides
3. Divide both sides by 5
Answer:
a = -36/7
Step-by-step explanation:
55 + 7a = 19
(55 - 55) + 7a = (19 - 55)
7a = -36
7a/7 = -36/7
a = -36/7 the fraction can't be simplified any further
Four batches can be made with 6 cups

Substitute the value of x = -3 to the equation:

Answer: 7
Step-by-step explanation: Imagine having 5 chocolate bars and then adding 2, or you could try counting with your fingers. Another method is writing a number line and going plus 2 from five so you can visualize it more.