In an isosceles triangle, one side is 6 more than 3 times a number and the congruent side is 10 less than 5 times the same number, what is that number?

a.2
b.8
c.16
d. none of above

it would be 6xy and -16xy.

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!