Question

determine a raíz de cada função a)Y=5x-30 b)Y= -3x+12​

Answer 1

Resposta:

obs: all math accounts are solved by x, I didn't put the value of y because the result will be the same as the question.

a)Y=5x-30

Step 1: Flip the equation.

5x−30=y

Step 2: Add 30 to both sides.

5x−30+30=y+30

5x=y+30

Step 3: Divide both sides by 5.

5x/5=y+30/5

x=⅕ y+6

b)Y= -3x+12​

Step 1: Flip the equation.

−3x+12=y

Step 2: Add -12 to both sides.

−3x+12+−12=y+−12

−3x=y−12

Step 3: Divide both sides by -3.

−3x/−3=y−12/−3

x=−1/3 y+4

Explicação passo a passo: