Question

2.3 - 5m = 9.8 + 2.5m

Answer 1

Answer:

$m=-1$

Step-by-step explanation:

$2.3-5m=9.8+2.5m$

⟹ Multiply both sides by 10:-

$2.3\times \:10-5m\times \:10=9.8\times \:10+2.5m\times \:10$

$23-50m=98+25m$

⟹ 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:-

$\frac{-75m}{-75}=\frac{75}{-75}$

$m=-1$

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Answer 2

Answer:

m=-1

Step-by-step 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