How do you solve # −2(x − 5) = −4#?

1 Answer
Jim G.
May 23, 2018

#x=7#

Explanation:

#"distribute the bracket on the left side of the equation"#

#-2x+10=-4#

#"subtract 10 from both sides"#

#-2xcancel(+10)cancel(-10)=-4-10#

#-2x=-14#

#"divide both sides by "-2#

#(cancel(-2) x)/cancel(-2)=(-14)/(-2)#

#x=7#

#color(blue)"As a check"#

Substitute this value into the left side of the equation and if equal to the right side then it is the solution.

#-2(7-5)=-2xx2=-4#

#rArrx=7" is the solution"#

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