Situation, Stella wants to build up her emergency fund to $10,000. She has $2,000 now and plans on saving 5320 every month. To model
she creates this equation, where x represents the number of months and y represents the total amount in her emergency fund:
y = 2,000 + 320x
Determine the missing steps and justifications in her work.
y - 2,000 = 2,000 + 320x - 2,000
division property of equality
y - 2,000
320 SX
10,000 - 2,000
320 = 25 = x
8,000 - 200
320 = 24 = x
y - 320
2,000 = x
y - 2,000 = 2,000 - 320x - 2,000
multiplication property of equality
Steps
Justification
y = 2,000+ 320x
given
subtraction property of equality
y - 2,000 = 320x
simplification
y-2,000
320
320x
320
simplificat
substitution and simplification