Question

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 subtract 2 from...

Answer 1

both sides of the equation. This gives the equation 2x = –6. Finally, use the division property of equality to divide both sides of the equation by 2 to give a final solution of x = –3. Therefore, given the equation 7x + 2 = 2 + 5x – 6, x is equal to –3.

Which justification was left out of the paragraph proof above?

Answer 2

I am sorry but its unclear what you want? I don't think any statement of justification has been left out here.

Answer 3

my comment was just the rest of my question i couldn't fit it all in at once and i think it's the distributive but im not sure..

Answer 4

ok thank-you