4 years ago

Solve the equation for y. 4.2x-1.4y=2.1

Mathematics

1 answer:

mr Goodwill [35]4 years ago

8 0

Subtract 2.1 from both sides:

$4.2x-1.4y-2.1=0$

Add 1.4y to both sides:

$4.2x-2.1=1.4y$

Of course, we can rewrite this as

$1.4y=4.2x-2.1$

Divide both sides by 1.4

$y = \dfrac{4.2}{1.4}x - \dfrac{2.1}{1.4} = 3x - 1.5$

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