Help, x+x+2+x+4+x+6=-28. State the property that justifies your first step and why you chose it

Question

Spectrum · Answer

Solve the linear equation.

ILikeToEatChildren · Answer

first of all, when a variable just by itself means one, such as X=1X. so the question is saying, 1x+1x+2+1x+4+1X=28

Alexis1415 · Answer

Step 1: 
Add the numbers, 
x+x+2+x+4+x+6+=-28
x+x+12+x+x=-28

ILikeToEatChildren · Answer

@iliketoeatchildren wrote:

first of all, when a variable just by itself means one, such as X=1X. so the question is saying, 1x+1x+2+1x+4+1X=28

Then you would add all of the numbers that have the same variable, add all numbers that have a X in the number.

Alexis1415 · Answer

Step 2: 
Combine like terms,
𝑥+ x+12+x+x= -28
4x+12= -28

Alexis1415 · Answer

Step 3:
Subtract 12 from both sides of the equation,
4x+12= -28
4x+12-12= -28-12

Spectrum · Answer

-40