Question

What value of the variable makes the statement true?
m + 4 = –2.8
a. –6.8
b. –1.2
c. 1.2
d. 6.8

Answer 1

A. -6.8 because
m + 4 = -2.8
m = -2.8 - 4
m = -6.8

Answer 2

                                               m + 4 = -2.8

Subtract  4  from each side:    m      = -6.8