Question

3(5m – 7) + 4 = 8m + 18
Can you also explain it. I stuck on where the +4 goes

Answer 1

m=5

Explanation:

Firstly we know we are solving for M.

So we start like this.

`3(5m - 7) + 4 = 8m + 1`

use the distributive property to multiply 3 by 5m-7=

`15m - 21 + 4 =8m + 18`

Add -21 and 3 to get -17

`15m - 17 = 8m + 16`

subtract 8m from both sides

`15 m - 17 - 8m = 18`

combine 15m and -8m to get 8m

`7m - 17 = 18`

Add 17 to both sides

`7m = 18 + 17`

Add 18 and 17 to get 35

`7m = 35`

Divide both sides by 7

`m = \binom{35}{7}`

Divide 35 by 7 to get 5

`m = 5`