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vovikov84 [41]
3 years ago
15

Solve for x 3(-x-3)+x-3=26

Mathematics
2 answers:
san4es73 [151]3 years ago
8 0

Answer:

\boxed {x = -19}

Step-by-step explanation:

Solve for the value of x:

3(-x - 3) + x - 3 = 26

-Use <u>Distributive Property</u>:

3(-x - 3) + x - 3 = 26

3(-x ) - 9 + x - 3 = 26

-Combine both -9 and 3:

3(-x ) - 9 + x - 3 = 26

3(-x ) - 12 + x = 26

-Add 12 to both sides:

3(-x ) - 12 + 12 + x = 26 + 12

3(-x) + x = 38

-Multiply the -1 by 3:

3(-x) + x = 38

-3x + x = 38

-Combine both the -3x and x:

-3x + x = 38

-2x = 38

-Divide both sides by -2:

\frac{-2x}{-2} = \frac{38}{-2}

\boxed {x = -19}

Therefore, the value of x is -19.

Olin [163]3 years ago
5 0

 \bold{Hello!}\\\bold{Your~Answer~Is~Below!}

______________________________

 \bold{Solution~Steps:}

When we have a problem with parenthesis we must use distributive property:

  • 3 × -x-3
  • The 3 cancels out, leaving -x

         * 3(-x)-9+x-3=26

Subtract 3 from -9:

  • 3-(-9)=-12

         * 3(-x)-12+x=26

Add 12 to both sides:

  • Since -12 is negative we do the opposite of what we see, so it cancels out.  
  • -12+12= Cancels out
  • 26+12=38

         * 3(-x)+x=38

Multiply 3 and -1:

  • In this case we have 2 x's, so we need to get rid of one. We do this by turning (-x) into -1.
  • Then we multiply them together: 3 × -1=-3

         * -3x+x=38

Combine like terms:

  • -3x+x=-2x

         * -2x=38

Divide to get x alone:

  • Divide by -2 on each side by rule of opposites: -2x ÷ -2=x
  • 38 ÷ -2=-19

        \boxed{x=-19}

______________________________

 \bold{Hope~this~helps,}\\\bold{And~best~of~luck!}\\\\\bold{~~~~~~-TotallyNotTrillex}

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