Question

help me pls and ty !

Answer 1

Answer:

$a=2.6-3.4b$

Step-by-step explanation:

So we have the equation:

$2.2a+3.4b=1.2a+2.6$

And we want to solve for a.

So, subtract 1.2a from both sides:

$(2.2a+3.4b)-1.2a=(1.2a+2.6)-1.2a\\1a+3.4b=2.6$

Now, subtract 3.4b from both sides:

$(a+3.4b)-3.4b=2.6-3.4b\\a=2.6-3.4b$

And that's our answer :)