Given the equation 5 + x - 12 = x - 7.

part a. solve the equation 5 + x - 12 = x - 7. in your final answer, be sure to state the solution and include all of your work.

part b. use the values x = -4, 0, 5 to prove your solution to the equation 5 + x - 12 = x - 7. in your final answer, include all of your calculations.

show me your step by steps to get the answers so i can do it too with the rest of the questions, i really need to know how to do this.

Part A:

Equation → 5 + x - 12 = x - 7

Combine Like Terms → -7 + x = x - 7

Subtract x to both sides → -7 + x - x = x - x - 7

Simplify → -7 = -7

Add 7 to both sides → -7 + 7 = -7 + 7

Simplify → 0 = 0

All real number are solutions.

Part B.

Using -4 for x.

5 + x - 12 = x - 7

5 + (-4) - 12 = -4 - 7

-11 = -11

Using 0 for x.

5 + x - 12 = x - 7

5 + 0 - 12 = 0 - 7

5 - 12 = -7

-7 = -7

Using 5 for x.

5 + x - 12 = x - 7

5 + 5 - 12 = 5 - 7

-2 = -2

Using all these numbers show that my original statement of "All real numbers are solutions" is correct.

Best of Luck!

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

898.1666667

step-by-step explanation:

5389/6 = 898.1666667