Question

< MA.912.A.3.2>

Given: 7x + 2 = 2 + 5x – 6

Prove: x = –3

Given the equation 7x + 2 = 2 + 5x – 6, use the commutative property to rearrange the terms so that like terms are next to one another. This gives the equation 7x + 2 = 2 – 6 + 5x. Then use the ____________________ to group the like terms. This gives the equation 7x + 2 = (2 – 6) + 5x. Next, combine like terms to get the equation 7x + 2 = –4 + 5x. Use the subtraction property of equality to subtract 5x from both sides of the equation. This gives the equation 2x + 2 = –4. Then use the subtraction property of equality again to

Answer 1

Should I plug in 3 where x is?

Answer 2

it would be 7*3 an 5 *3
were ever the x is you * it

Answer 3

-3 sorry

Answer 4

associative property

Answer 5

nevermind, but I know I have to rearange the propblem then combine like terms and im not sure of what to do after that