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Question

Write the steps in solving 6n−4+5n=73.
Justify each step with an appropriate property.

Answer 1

6n - 4 + 5n = 73
Combine like terms:
11n - 4 = 73
Add 4 to both sides to isolate the variable term:
11n = 77
Divide by 11 on both sides to solve for n:
n = 7

Property used:
- Addition property of equality: Adding the same value to both sides of an equation does not change the equality.
- Division property of equality: Dividing both sides of an equation by the same non-zero value does not change the equality.