Question

5. Evaluate :
(i) -7x + 9x + 2x - 2x
(iii) -8a - 3a + 12a + 13a - 6a
(ii) 5ab – 2ab – 8ab + bab
(iv) 19abc – 11abc – 12abc + 14abc​

Answer 1

Step-by-step explanation:

i) -7x+9x+2x-2x=2x+0=2x

ii) -8a-3a+12a+13a-6a= -11a+25a-6a= 14a-6a=8a

iii)5ab-2ab-8ab+6ab=3ab-2ab=ab

iv) 19abc-11abc-12abc+14abc=8abc+2abc=10abc