Answer:
50
Step-by-step explanation:
X+52+78=180
X+52+78=180
-78 -78
X+52+0= 102
X+52=102
-52 -52
X+0= 50
X=50
To find what X is equal to it's process of elimination.
You know X plus the numbers gives you the answer so subtracting those same numbers from your answer will give you X.
You have to mKe sure you do the same thing to both sides of the equations though.
Let's say
X+3=5
To find X you need to single X out on it's side of the equation.
To single X out you want to nullify anything acting on X by doing the opposite the opposite of positive 3 is negative 3... so
X+3= 5
-3 -3
We add negative 3 to each side of the equation to nullify the 3 on the X side.
We are left with
X=2
Answer:
50
Step-by-step explanation:
Subtract 78 from 180 (180 - 78 = 102)
Subtract 52 from 102 (102 - 52 = 50)
50 will be your answer
