6x+7x-14=6+5x+6x

I just need help lol this is for a test

Step-by-step explanation:

combine like terms, 13x-14=6+11x

move the -14, (add it) to the other side, 13x=20+11x

move the 11x, (subtract it) to the other side, 3x=20

divide both sides by 3, x=6 2/3 (six and two thirds)

Let's solve your equation step-by-step.

6x+7x−14=6+5x+6x

Step 1: Simplify both sides of the equation.

6x+7x−14=6+5x+6x

6x+7x+−14=6+5x+6x

(6x+7x)+(−14)=(5x+6x)+(6)(Combine Like Terms)

13x+−14=11x+6

13x−14=11x+6

Step 2: Subtract 11x from both sides.

13x−14−11x=11x+6−11x

2x−14=6

Step 3: Add 14 to both sides.

2x−14+14=6+14

2x=20

Step 4: Divide both sides by 2.

2x/2 = 20/2

x=10  

147

Step-by-step explanation:

To evaluate 2f(3)+3f(-3), we first need to find the values of f(3) and f(-3). Given f(x), we just plug in x=3, -3 into f(x).

f(3)=2(3)²-4(3)+9         [exponent]

f(3)=2(9)-4(3)+9          [parenthesis]

f(3)=18-12+9                [subtract]

f(3)=6+9                       [add]

f(3)=15

Now, we find f(-3).

f(-3)=2(-3)²-4(-3)+9      [exponent]

f(-3)=2(9)-4(-3)+9         [parenthesis]

f(-3)=18+12+9               [add]

f(-3)=30+9                    [add]

f(-3)=39

With the values of f(3) and f(-3), we can evaluate the expression.

2(15)+3(39)                  [multiply]

30+117                          [add]

147

Now, we know the value is 147.