Which first step for solving the given system using substitution results in an equation without fractions?
(2x+6y=7
(6x + 18y = 24
o
o
solve for x in the first equation,
solve for y in the first equation,
solve for x in the second equation

  (c)  Solve for x in the second equation

Step-by-step explanation:

All of the coefficients in the second equation are multiples of the coefficient of x, so it can be reduced to ...

  x +3y = 4

Solving that equation for x does not involve any fractions.

  x = 4 -3y

If you solve for x in the second equation, the result is an equation without fractions.

answer: input the dimensions of the room to be painted. click the button to calculate the amount of paint and man-hours needed for this job.

interior paint coverage depends on the brand of paint used. the coverage amount is listed on the label of the paint can. use this to adjust the values in the paint coverage section below. paint usually is applied at 350 to 400 square feet per gallon (primer at 200 to 300 square feet per gallon).

step-by-step explanation: