Answer:
1. 11.50
2. 4x +20=7x-13
4x+20-20=7x-13-20
4x=7x-33
4x-7x=7x-33-7x
3x=33
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Answers & Comments
Answer:
1. 11.50
2. 4x +20=7x-13
4x+20-20=7x-13-20
4x=7x-33
4x-7x=7x-33-7x
3x=33
x=11