Heidi solved the equation
3(x + 4) + 2 = 2 + 5(x – 4). Her steps are below:
3x + 12 + 2...
Mathematics, 09.12.2020 23:20 21shuldrak
Heidi solved the equation
3(x + 4) + 2 = 2 + 5(x – 4). Her steps are below:
3x + 12 + 2 = 2 + 5x – 20
3x + 14 = 5x – 18
14 = 2x – 18
32 = 2x
16 = x
Use the drops-downs to justify how Heidi arrived at each step.
ANSWERS:
Step 1:
✔ distributive property
Step 2:
✔ combine like terms
Step 3:
✔ subtraction property of equality
Step 4:
✔ addition property of equality
Step 5:
✔ division property of equality
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