Question

subtract a-b from 3a-b+4 plz tell me with proper explanation
first answer will be marked as brainliest

Answer 1

Answer:

Step-by-step explanation:

3a-b+4

a-b

Multiply a-b into 3

You get

3a-3b=0

3a+b=-4

3a-3b=0

4b=-4

B=-1

Substitute b value in 1st equation

3a +(-1)=-4

3a=-4+1

3a=-3

a=-1

A=-1,

B=-1

Hope it helps you my dear friend

Answer 2

Answer: $a=-2$ and $b=-2$

Step-by-step explanation:

We can write the equation as follows:

$3a-b+4=0\\3a-b=-4$---(1)

$a-b=0$  ---(2)

Now substracting (2) from (1)

We get,

$3a-b-(a-b)=-4-0\\3a-a-b+b=-4\\2a=-4\\\therefore a=-2$

Putting the value of a in equation (2)

We get,

$-2-b=0\\\therefore b=-2$

Here, after substracting a-b from 3a-b+4 we got the exact values of a and b.

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