Answer:
16
Step-by-step explanation:
2x -2 = 10 + 20
2x -2 + 2= 10 + 20 + 2
2x = 32
x = 32/2 = 16
Plug this in, too.
2(16) - 2 = 10 + 20
30 = 30 and they are equal!
Answer: x= -11/4 as a proper fraction; -2.75 as a decimal.
Step-by-step explanation:
2x-2= 10x + 20
Combine like terms
-2-20=10×-2×
-22=-8×
Divide both sides by 8
x=-22/8
=-11/4 or 2 3/4
X= -2.75
Plug the value of x into the equation:
2 (-2.75) -2 = 10 (-2.75) +20
-5.5 -2 = -27.5 + 20
-7.5 = -7.5
