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5x-7-2x=10 what is x equaled to
HELP ASAP!!!!

User RoadRash
by
8.0k points

2 Answers

2 votes

Answer:

x=-1

Explanation:

5x-2x-7=-10

3x-7=-10

3x-7+7=-10+7

3x=-3

x=-1

User Wdanxna
by
8.2k points
6 votes


\text{Hey \: there!}


\text{5x - 7 - 2x = 10}

  • First you'll have to COMBINE all of your like terms


\bf{(5x - 2x) \: which \: gives \: us \: 3x}

  • New equation becomes:

  • \bf{3x - 7 = 10}
  • Add by 7 on your sides


\text{3x - 7 + 7 = 10 + 7}

  • Cancel out


\bf{ - 7 + 7 \: because \: it \: gives \: you \: 0}


\bf{10 + 7 = 17}

  • New equation:

  • \bf{3x = 17}
  • Divide by 3 on both sides


(3x)/(3) = (17)/(3)

  • Cancel out

  • (3x)/(3) \: \bf{because \: it \: gives \: you \: 1 \: and \: not \: x \: }


\text{we \: cant \: divide \: 17 \: from \: 3 \: because \: itll \: give \: us \: a \: decimal}


\boxed{\bf{thus \: your \: answer \: is \: \bf{ (17)/(3) }}}

Good luck on your assignment and enjoy your day!

~


\frak{loveyourselffirst:)}

User Woods
by
7.8k points

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