Answer:
x = 4
Step-by-step explanation:
-18 = -5x-(-2)
i) when there is a '-' sign in front of an expression in parentheses, change the sign of each term in the expression
-18 = -5x+2
ii) move -5x to the left-hand side and change its sign
5x-18 = 2
iii) move -18 to the right-hand side and change its sign
5x = 2+18
iv) add the numbers
5x = 20
v) divide both sides of the equation by 5
[tex] \frac{5x}{5} = \frac{20}{5} [/tex]
[tex]x = 4[/tex]
