Question

Find the sum or difference.

(3 – 7m) + 2(3. 5m +1)

Answer 1

5

Explanation:

You want the sum (3 -7m) +2(3.5m +1).

Simplify

We can simplify the expression by making use of the distributive property.

= 3 -7m +2(3.5m) +2(1)

= -7m +7m +3 +2

= 5

The sum is 5.

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Answer 2

Answer: 23m+5

Explanation:

Rearrange terms

( 3 - 7m) + 2( 3 ⋅ 5 m + 1 )

( -7 m + 3) + 2( 3 ⋅ 5m + 1)

Multiply the numbers

-7m + 3 + 2 ( 3 ⋅ 5m +1)

-7m + 3 + 2 ( 15m + 1)

Distribute

-7m + 3 + 2 ( 15m +1)

-7m + 3 + 30m +2

Add the numbers

-7m + 3 + 30m +2

-7m + 5 +30m

Combine like terms

-7m + 5 + 30m

23m + 5