all my digits are different the product of my digits is not equal to zero all of my digits are square numbers my units digit is even i am less than 500

The correct answer is 194

Step-by-step explanation:

let us check the answer against the criteria given in the question to check if they are correct:

a) all my digits are different: 1, 9 and 4 are all different digits

b) the product of my digits is not equal to zero: 1 × 9 × 4 = 36 ≠ 0

c) all my digits are square numbers: 1, 9 and 4 are all square numbers, having the square-root of 1, 3 and 2 respectively.

d) my units digit is even : the units digit in '194' is '4' and it is an even number

e) i am less than 500 : 194 is less than 500

Therefore the number is 194.

7

step-by-step explanation:

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.