Would be appreciated : ) how do you know which inverse operation to perform first when an equation contains two operations? which inverse operation do you perform first when solving the equation: 12 = 10 − 3x? which inverse operation do you perform last when solving the equation: 3/5x − 12 = 18?

PEMDAS

When solving an equation we do them in reverse order

AS  adding and subtracting

MD  multiplication and division

E exponents

Basically we are trying to get the variable alone.

12=10-3x

subtract 10 from each side

then divide by -3 on each side

3/5 x -12 = 18

first add 12 to each side

then multiply by 5/3 to each side

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.