4 2x 1 5x 3x 9

Asked by maham237 @ in Mathematics viewed by 431 People

Jade solved the following equation:
3 + 5x – 7 = 3x – 9

Step

Work

Justification
1

5x + 3 – 7 = 3x – 9

Commutative property of addition
2

5x – 4 = 3x – 9

Addition property of equality
3

2x – 4 = –9

Subtraction property of equality
4

2x = –5

Addition property of equality
5

x = –2.5

Division property of equality

Which step has an incorrect justification?

Answered by maham237 @


Answer:

its step 4

Step-by-step explanation:



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