Math

2021-09-28 Answered

 

 Describe the error in solving the equation for x.

  • In the third step, the left side was not divided by −2−2 correctly.

  • In the third step, the negative sign was not distributed to both terms in parentheses.

  • The equation is not solved for xx because there is still a term with xx on both sides.

  • The equation cannot be solved for xx because the terms with xx cancel out on each side.

 

Question 2

Correct the error.

x=

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Answers (1)

Jeffrey Jordon
Answered 2021-10-20 Author has 2581 answers

122x=2(yx)

Simplify 2(yx)2(yx).

Rewrite.

122x=0+02(yx)

Simplify by adding zeros.

122x=2(yx)

Apply the distributive property.

122x=2y2(x)

Multiply 1 by 2.

122x=2y+2x

Move all terms containing x to the left side of the equation.

Subtract 2x from both sides of the equation.

122x2x=2y

Subtract 2x from −2x.

124x=2y

Subtract 12 from both sides of the equation.

4x=2y12

Divide each term in 4x=2y12 by 4 and simplify.

4x4=2y4+124

Simplify the left side.

x=2y4+124

Simplify the right side.

x=y2+3

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