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3 votes
-7x - 3x + 2 = 8x - 8
Step by Step please​

User Wrahim
by
4.6k points

2 Answers

4 votes

Answer:


\boxed{\sf x=\cfrac{5}{9}}


\boxed{\sf x=0.5555}

Explanation:


\sf -7x-3x+2=8x-8

Combine like terms:


\mapsto \sf -7x-3x


  • \sf -10x


\mapsto \sf -10x+2=8x-8

Subtract 2 from both sides:


\mapsto \sf -10x+2-2=8x-8-2


\mapsto \sf -10x=8x-10

Subtract 8x from both sides:


\mapsto \sf -10x-8x=8x-10-8x


\mapsto \sf -18x=-10

Divide both sides by -18:


\mapsto \sf \cfrac{-18x}{-18}=\cfrac{-10}{-18}


\mapsto \sf x=\cfrac{5}{9}

_________________________________

User Fanton
by
4.4k points
5 votes

Answer:


{ \boxed{ \mathfrak{answer}}} :


{ \rm{ - 7x - 3x + 2 = 8x - 8}} \\ \\ { \rm{ - 7x - 3x - 8x = - 8 - 2}} \\ \\{ \rm{ - x(7 + 3 + 8) = - (8 + 2) }} \\ \\ { \rm{ - 18x = - 10}} \\ \\ { \boxed{ \boxed { \rm{ \: \: x = (5)/(9) \: }}}} \: or \: \: { \boxed{ \boxed{ \rm{ \: \: x = 0.{ \bar{5}}}}}}

User Jabbie
by
4.3k points