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Sonbull [250]
3 years ago
5

Use the equation to complete an algebraic proof that proves the answer is x = 7/6. Write your proof in your journal and upload y

our answer. You will be awarded 5 points for the statements and 5 points for the reasons.
(2x+6)/5=4x−3
Mathematics
1 answer:
Ivahew [28]3 years ago
4 0

Answer:

x=7/6

Step-by-step explanation:

subtract the 4x from both sides of the equation

(2x+6)-4x=4x-3-4x

find common denominator

(2x+6)/5+(5(-4)x)/5=4x-3-4x

then combine fractions

(2x+6+5(-4)x)/5=4x-3-4x

then multiply the 5&4

(2x+6-20x)/5= 4x3-4x

combine terms

(-18x+6)/5= -3

then multiply everything by 5

-18x+6= -15

subtract the 6 from both sides

-18x= -21

divide -21 by -18

(-21)/(-18)=x

find greatest common multiple (3) and solve

x = 7/6

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zhannawk [14.2K]

Answer:

Step-by-step explanation:

Well, they are not the same. For one thing, 48÷x = 6 is an equation.

48-x-x-x-x-x-x is an expression, not an equation.

6 0
3 years ago
9. If f(x)=-2x^2+4x-6, <br> then f(2)=
Romashka-Z-Leto [24]

Answer:

f(2) = -6

General Formulas and Concepts:

Order of Operations: BPEMDAS

Substitution and Evaluation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = -2x² + 4x - 6

f(2) is x = 2

<u>Step 2: Solve</u>

  1. Substitute:                          f(2) = -2(2)² + 4(2) - 6
  2. Exponents:                         f(2) = -2(4) + 4(2) - 6
  3. Multiply:                              f(2) = -8 + 8 - 6
  4. Add:                                    f(2) = -6
3 0
3 years ago
A car rents for $45 per day plus .22cent toy are on a daily budget of 77 what mialage
elena55 [62]
If its $45 per day plus $0.22 cents, and you only have $77. You can only have the car for 1.7 days which adds up too $76.94.
4 0
3 years ago
С<br> What is the solution to the equation 3x ÷ (-6) = -12?
Nat2105 [25]

Answer:

x=24

Step-by-step explanation:

First: Multiply -6 to both sides

Next: You get 3x=72

Then: Divide 72 by 3

Last:....

ANSWER: x=24

7 0
3 years ago
Read 2 more answers
One and three seven divided by two
Vladimir [108]

Answer:

0.7 or 5/7

Step-by-step explanation:

(1 3/7) ÷ 2 =

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