Which is the most efficient first step to solve for x in the equation 3.7 x minus 18 = negative 4.3 x minus 34? add 3.7x to both sides of the equation. add 4.3x to both sides of the equation. subtract 18 from both sides of the equation. subtract 34 from both sides of the equation.

Add 4.3x to both sides of the equation.

Step-by-step explanation:

The given equation is expressed as

3.7x - 18 = - 4.3x - 34

The main aim is to solve for x and x is on the left hand side and the right hand side of the equation. So the most efficient step would be to make all the terms 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, the most efficient first step to solve for x in the equation would be

Add 4.3x to both sides of the equation.

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.