Q: What is -7a plus 3a?

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3a+5b+7a=

a + 3a - 2 + 3a. Add the a + 3a + 3a = 7a. You can't combine the -2 & 7a so the solution is: 7a - 2.

7a

4a + 3a = (4 + 3)a = 7a

7a plus 2b plus 3a plus 5b is equal to 10a plus 7b.

3a - 2b

7a-2b

It is: 7a+1 when simplified

It is: 3a+7a = 10a simplified

7a minus 2, if "3a-2" means 3a minus 2. 3a plus 1 and 1-3rd in parenthesis times 3a, if "3a-2" means 3a squared. a plus 3a squared plus 3a = 1-3rd times 3a plus 3a times 3a plus 1 times 3a = 3a plus 1 and 1-3rd in parenthesis times 3a

7a-17 = 4a+1 7a-4a = 1+17 3a = 18 a = 6

4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2