Question

2.3 - 5m = 9.8 + 2.5m

Answer 1

m=-1

Explanation:

2.3-5m=9.8+2.5m

+5m=9.8+5m

2.3=9.8+7.5m

-9.8 -9.8

-7.5=7.5m

/7.5 /7.5

-1=m

Answer 2

`m=-1`

Explanation:

`2.3-5m=9.8+2.5m`

⟹ Multiply both sides by 10:-

`2.3* \:10-5m* \:10=9.8* \:10+2.5m* \:10`

`23-50m=98+25m`

⟹ Subtract 23 from both sides:-

`23-50m-23=98+25m-23`

`-50m=25m+75`

⟹ Subtract 25m from both sides:-

`-50m-25m=25m+75-25m`

`-75m=75`

⟹ Divide both sides by -72:-

`(-75m)/(-75)=(75)/(-75)`

`m=-1`

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