Question

3) Solve the following:
a) 6u + 2 = 56
b) 8n - 4 =60
c) -5 (x-8) = 120
d) 9(x-5) +54 = 0

Answer 1

$u = (56 - 2 ) \div 6$

u=9

n=8

x=-52

x=11

Answer 2

Explanation:

a)6u+2=56

6u=56-2

6u=54

u=54/6

u=9

b)8n-4=60

8n=60+4

n=64/8

n=8

c)-5(x-8)=120

x-8=120/-5

x=-24+8

x=-16

d)9(x-5)+54=0

9(x-5)=-54

(x-5)=-54/9

x=-6+5

x=-1