$7(2 - 3n) = (2 - 3n) \times 7\\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =(7 \times 2) - (7 \times 3n) \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 14 - 21n$

5 0

3 years ago

Help me pls and ty !

Naya [18.7K]

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 :)

7 0

3 years ago

Approximate solution to this equation?

diamong [38]

I don’t know the answer i just want points

8 0

3 years ago

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