Question 4 (a)
Find:
(–7) – 8 – (–25)
(–7) – 8 – (–25) = –7 – 8 + 25 = –15 + 25 = 10
Question 4 (c)
(–7) + (–8) + (–90)
Solve the following question to find the value of 'x' : 7x+4=25+4x