How do you solve #7x + 3( - 3x + 2) = - 8#?

1 Answer
Jim G.
May 2, 2018

#x=7#

Explanation:

#"distribute the parenthesis"#

#7x-9x+6=-8#

#rArr-2x+6=-8#

#"subtract 6 from both sides"#

#-2xcancel(+6)cancel(-6)=-8-6#

#rArr-2x=-14#

#"divide both sides by "-2#

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

#rArrx=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.

#49+3(-21+2)=49+(3xx-19)=49-57=-8#

#rArrx=7" is the solution"#

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