Math  /  Algebra

QuestionSolve for xx : 7x(x+6)=9+2x-7 x-(x+6)=9+2 x
Answer Attempt 1 out of 2 x=x= \square Submit Answer

Studdy Solution

STEP 1

1. The equation is linear and can be solved for x x .
2. The equation involves combining like terms and using basic algebraic operations.
3. The solution will be a single value for x x .

STEP 2

1. Simplify the equation by distributing and combining like terms.
2. Move all terms involving x x to one side of the equation.
3. Isolate the variable x x .
4. Solve for x x .

STEP 3

Start by distributing the negative sign in the expression (x+6) -(x + 6) :
7xx6=9+2x -7x - x - 6 = 9 + 2x

STEP 4

Combine like terms on the left side of the equation:
7xx=8x -7x - x = -8x
So the equation becomes:
8x6=9+2x -8x - 6 = 9 + 2x

STEP 5

Move all terms involving x x to one side by adding 8x 8x to both sides:
8x+8x6=9+2x+8x -8x + 8x - 6 = 9 + 2x + 8x
Simplifying gives:
6=9+10x -6 = 9 + 10x

STEP 6

Isolate x x by moving the constant term to the other side. Subtract 9 from both sides:
69=10x -6 - 9 = 10x
Simplifying gives:
15=10x -15 = 10x

STEP 7

Solve for x x by dividing both sides by 10:
x=1510 x = \frac{-15}{10}
Simplify the fraction:
x=32 x = -\frac{3}{2}
The solution is:
32 \boxed{-\frac{3}{2}}

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