Step-by-step explanation:
Let the number be x, then

CD is congruent to XY, DA is congruent to YZ and AC is congruent to ZX even tho i'm not able to see properly your image
Answer:
x=9
Step-by-step explanation:
Add similar elements: -5x+3x=-2x
-2x+15=-3
Subtract 15 from both sides
-2x + 15-15=-3-15
Simplify
-2x=-18
Divide both sides by -2
-21/-2 = -18/-2
Simplify
x=9
Answer: 9,000
Step-by-step explanation: there are 9 number options for the first digit and 10 for the other 3, so 9x10x10x10=9000
Answer:
x + 6 = 33
Step-by-step explanation:
6 more than x means there's an increment in the value of x by addition of 6
x + 6 = 33
This leads to an algebraic linear equation. x is an unknown variable and can be solved for
we subtract 6 from both sides of the equation
x + 6 - 6 = 33 - 6
x = 27
Therefore, we can say 6 more than 27 is 33