Question

C) 7-x+9 = 3x-2-9x d)5x+7+X= 5+2x+5 E)4x+6+X= 5+9x+9 F) 4+ 6X+3= -4x-7+ X

Answer 1

Resposta:

C) 7-x+9 = 3x-2-9x

Step 1: Simplify both sides of the equation.

7−x+9=3x−2−9x

7+−x+9=3x+−2+−9x

(−x)+(7+9)=(3x+−9x)+(−2)(Combine Like Terms)

−x+16=−6x+−2

−x+16=−6x−2

Step 2: Add 6x to both sides.

−x+16+6x=−6x−2+6x

5x+16=−2

Step 3: Subtract 16 from both sides.

5x+16−16=−2−16

5x=−18

Step 4: Divide both sides by 5.

5x/5=−18/5

x=−18/5

d)5x+7+X= 5+2x+5

Step 1: Simplify both sides of the equation.

5x+7+x=5+2x+5

(5x+x)+(7)=(2x)+(5+5)(Combine Like Terms)

6x+7=2x+10

6x+7=2x+10

Step 2: Subtract 2x from both sides.

6x+7−2x=2x+10−2x

4x+7=10

Step 3: Subtract 7 from both sides.

4x+7−7=10−7

4x=3

Step 4: Divide both sides by 4.

4x/4=3/4

x=3/4

E)4x+6+X= 5+9x+9

Step 1: Simplify both sides of the equation.

4x+6+x=5+9x+9

(4x+x)+(6)=(9x)+(5+9)(Combine Like Terms)

5x+6=9x+14

5x+6=9x+14

Step 2: Subtract 9x from both sides.

5x+6−9x=9x+14−9x

−4x+6=14

Step 3: Subtract 6 from both sides.

−4x+6−6=14−6

−4x=8

Step 4: Divide both sides by -4.

−4x/-4=8/−4

x=−2

F) 4+ 6X+3= -4x-7+ X

Step 1: Simplify both sides of the equation.

4+6x+3=−4x−7+x

4+6x+3=−4x+−7+x

(6x)+(4+3)=(−4x+x)+(−7)(Combine Like Terms)

6x+7=−3x+−7

6x+7=−3x−7

Step 2: Add 3x to both sides.

6x+7+3x=−3x−7+3x

9x+7=−7

Step 3: Subtract 7 from both sides.

9x+7−7=−7−7

9x=−14

Step 4: Divide both sides by 9.

9x/9=−14/9

x=−14/9

Explicação passo a passo: