Question

Solve for x:
x/7 - 6 = 3

A. 27
B. -63
C. -27
D. 63

Answer 1

Answer:

D. 63

Step-by-step explanation:

First, add 6 to both sides:

$\frac{x}{7}$ - 6 = 3

$\frac{x}{7}$ = 9

Multiply each side by 7

x = 63

So, the correct answer is D. 63

Answer 2

Simplify 6⋅ (x+3)

Apply the distributive property.

6x+6⋅3=x⋅76x+6⋅3=x⋅7

Multiply 66 by 33.

6x+18=x⋅76x+18=x⋅7

Move 77 to the left of xx.

6x+18=7x

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

subtract 7x7x from both sides of the equation.

6x+18−7x=06x+18-7x=0

Subtract 7x7x from 6x6x.

−x+18=0-x+18=0

Subtract 1818 from both sides of the equation.

−x=−18-x=-18

Multiply each term in −x=−18-x=-18 by −1

Multiply −1-1 by −1-1.

1x=(−18)⋅−11x=(-18)⋅-1

Multiply xx by 11.

x=(−18)⋅−1x=(-18)⋅-1

Multiply−18-18 by −1-1.

x=18