How do I solve this ?

Step-by-step explanation:

I'm just going to go out on a limb here and assume that those are a set of poorly made parenthesis. This, then, would be your equation:

The first thing to do is distribute through the parenthesis to get:

Next is to get rid of the denominators by multiplying by the LCM of 77:

which gives you:

77x + 11x + 7x + x = 4620 and

96x = 4620 so

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

step-by-step explanation:

ask goog great chance of finding the solution there