Which equation is not equivalent to 2x + 14 = 4x - 6 a) 14 +6 = 2x
b) -2x =20
c) 2x - 4x = -20
d) x = 10​

2x + 14 = 4x - 6
14 = 2x - 6
20 = 2x
10 = x

a) 14 + 6 = 2x
20 = 2x
10 = x

b) -2x = 20
x = -10

c) 2x - 4x = -20
-2x = -20
x = 10

d) x = 10

b is the only one that doesn’t equal 10.

D.). X=10. It is the same equation, only simplified.

The answer is 41.7 because 1.39 times 30 is 41.7