Question 379102
7(x + 4) = 8
7x + 28 = 8
7x = 8 - 28
7x = -20
x = {{{(-20)/7}}}
x = -2.857, a disappointing number, let's see if it works in the original eq
:
7(-2.857 + 4) = 8
7(1.143) = 8
8.00 = 8; therefore x =-2.857 is correct