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butty11720 butty11720
  • 23-09-2014
  • Mathematics
Answered

8X + 3 =5x - 18


Can someone please help me

Verified Answer :

mariamikayla
mariamikayla mariamikayla
  • 23-09-2014

\(8x+3=5x-18 \\\\ 8x-5x=-18-3 \\\\ 3x=-21 \\\\ \boxed{x=-\frac{21}{3}=-7}\)

Answer Link
nashty
nashty nashty
  • 23-09-2014

8x + 3 = 5x - 18

First, we'll want to move the x's on to the same side, and the numbers on to the same side.

Let's move 5x over to the left.

Subtract 5x from both sides.

8x - 5x + 3 = 5x - 5x - 18

3x + 3 = -18

Now, let's move 3 to the right.

Subtract 3 from both sides.

3x + 3 - 3 = -18 - 3

3x = -21

Divide both sides by three

3x/3 = -21/3

x = -7

Answer Link

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