Answer:
7a) 6X + 24
7b) 4X + 17
8) $142
Step-by-step explanation:
7a) you first combine the variables / letters. Then the numbers
1. 4x + 2x = 6x
2. 29 - 5 = 24
6x + 24
7b) you first combine the variables / letters. Then the numbers
1. x + 3x = 4x
2. 10 + 14 - 7 = 17
4x + 17
8) I did 12a + 8b + 6b
1. plug in your numbers into the variables / letters 12( 6 ) + 8 ( 5 ) + 6 ( 5 ) = ?
2. Then do the individual numbers 72 + 40 + 30 = ?
3. Then you can combine them all 142
