How many solutions does the equation -7a+7a+6=8 have? a: one b: none c: two d: many

Hello from MrBillDoesMath!

b. none

Discussion:

The original equation

-7a+7a+6=8    can be rewritten as

(-7a + 7a) + 6 = 8 =>

0 + 6 = 8 =>

6 = 8

As 6 does not equal 8 there are NO (zero) solutions to the equation.

Thank you,

MrB

-10i^2-4i

step-by-step explanation:

evaluate for p=2,q=5i

(2−4)(2+5i)i

(2−4)(2+5i)i

=−10i2−4i