2 years ago

PLEASE HELP. When solving the equation, what property was used to go from Step 2 to Step 3?

Mathematics

1 answer:

Vitek1552 [10]2 years ago

5 0

9514 1404 393

Answer:

addition property of equality

Step-by-step explanation:

The addition property of equality is used to add 2x to both sides of the equation:

-2x +2x -3 = x +2x -18 . . step 2 with 2x added

-3 = 3x -18 . . . . . . . . . . . . step 3 (simplified)

You might be interested in

Solve for xxx. Your answer must be simplified. \dfrac x{-6}\geq-20 −6 x ≥−20

Tems11 [23]

Answer:

x ≤ - 27

Step-by-step explanation:

$\frac{x}{-9}\ge \:3\\\\\mathrm{Multiply\:both\:sides\:by\:-1\:\left(reverse\:the\:inequality\right)}\\\\\frac{x\left(-1\right)}{-9}\le \:3\left(-1\right)\\\\Simplify\\\\\frac{x}{9}\le \:-3\\\\\mathrm{Multiply\:both\:sides\:by\:}9\\\\\frac{9x}{9}\le \:9\left(-3\right)\\\\\mathrm{Simplify}\\\\x\le \:-27$