3 years ago

Justify each step used to simplify the expression (3 - 2)x + 2y + 2

Mathematics

1 answer:

Natali5045456 [20]3 years ago

3 0

$(3 - 2)x + 2y + 2 \\ = 3x - 2x + 2y + 2 \\ = x + 2y + 2$

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Given the equation solved by Ernesto expressed as $\sqrt{\dfrac{1}{2}w+8}=-2$ , the extraneous solution obtained by Ernesto is shown below;

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