Which is a reasonable first step that can be used to solve the equation

Use distributive property:

2x + 12 = 3x - 12 + 5

Step-by-step explanation:

This can allow for combining like terms later on, and eventually isolating x as a variable.

For this case we have the following equation:

The first step we must follow to solve the equation is to apply distributive property to the terms within the parenthesis:

Then, the equation is:

The first step is to apply distributive property to the terms within parentheses.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

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