What is the solution to this equation?
5х+9 – 3х= 18 + 15
а. x = 8
b. х = 3
с. х = 12
d. x= 21

x = 12

Step-by-step explanation:

The given equation is expressed as

5х+9 - 3х= 18 + 15

5x - 3x + 9 = 33

2x + 9 = 33

The first step is to make the terms each term containing x to be on the left hand side of the equation and the constants to be on the right hand side of the equation. Therefore, we would subtract 9 from the left hand side and the right hand side of the equation.

It becomes

2x + 9 - 9 = 33 - 9

2x = 24

Dividing the left hand side and the right hand side of the equation by 2, it becomes

2x/2 = 24/2

x = 12

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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