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-18=-5x-(-2) what is x?

Sagot :

Rebeccarayshmaidn

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]

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