Simplify 2a − 4b +7 + 8a + 6b − 2.(1 point)

3 answers

Simplify the expression:

2a − 4b + 7 + 8a + 6b − 2

Combine like terms (a's and b's separately):

(2a + 8a) + (-4b + 6b) + (7 - 2)

Simplify each set of like terms:

10a + 2b + 5.
Simplify 6/7c − 5/9d − 1/2 c + 1/3d.(1 point)
To simplify the expression, we need to combine like terms with the same variable.

To do this, we will first combine the terms with c: 6/7c - 1/2c.

When we combine the fractions, we need a common denominator, which in this case is 14.

6/7c * (2/2) - 1/2c * (7/7)

= 12/14c - 7/14c

= (12 - 7) / 14c

= 5/14c

Next, we will combine the terms with d: -5/9d + 1/3d.

To combine the fractions, we need a common denominator, which in this case is 9.

-5/9d * (1/1) + 1/3d * (3/3)

= -5/9d + 3/9d

= (-5 + 3) / 9d

= -2/9d

Therefore, the simplified expression is:

5/14c - 2/9d
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