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Kaylis [27]
4 years ago
14

Solve for al (21 – 3a) = 6 - a

Mathematics
2 answers:
castortr0y [4]4 years ago
8 0
The answer is 7.5

To get this answer you have to add like terms first. I added 3a so i ended up 21=6+2a

Subtract 6

15=2a now divide by 2

Answer is 7.5
Alecsey [184]4 years ago
3 0

Answer:

7.5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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