4.2 because u do the substatition and the formula
Answer:
Each multiple will always be divisible by 3
Step-by-step explanation:
11+2x = 8*(x-5)
11+2x = 8x-40
11+40+2x = 8x-40+40
51+2x-2x=8x-2x
51 = 6x
51/6 = 6x/6
8.5 = x
Therefore, your number is 8.5.
Answer:
3x - 1
Step-by-step explanation:
Note that you are adding the parenthesis together. In this case, you can disregard the parenthesis. Combine like terms (terms with the same amount of variables):
2x + 1x - 3 + 2
(2x + 1x) + (-3 + 2)
3x + (-1)
3x - 1
3x - 1 is your answer.
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Answer:
Step-by-step explanation:
comparing corresponding elements
x + y = 13
2x - y = 2
Now use substitution method.
x + y = 13
x = 13 - y equation(i)
substitute the value of x
2x - y = 2
2(13 - y) - y = 2
26 - 2y - y = 2
-3y = 2 - 26
y = -24/-3
y = 8
substitute the value of y in eqaution(i)
x = 13 - y
x = 13 - 8
x = 5
therefore , x = 5 and y = 8
To check :
x + y = 13
when we add x and y then must come 13
5 + 8 = 13
13 = 13
2x - y = 13
substitute the value of x and y . REsult must come 2
2*5 - 8 = 2
10 - 8 = 2
2 = 2
10 - 8 = 2
