45÷p=9 6•7-x=23 c•(36-28)=56
Ответы на вопрос
p = 45:9
p = 5
6•7-x=23
42-x = 23
x = 42-23
x = 19
c•(36-28)=56
c•8 = 56
c = 56:8
c = 7
To solve the given equations, let's go through each one step by step:
- 45 ÷ p = 9
To solve for p, we can multiply both sides of the equation by p:
45 ÷ p * p = 9 * p
This simplifies to:
45 = 9p
Now, divide both sides of the equation by 9:
45 ÷ 9 = (9p) ÷ 9
This gives us:
5 = p
So, the value of p is 5.
- 6 • 7 - x = 23
To solve for x, we'll start by simplifying the left side of the equation:
42 - x = 23
Next, we'll isolate x by subtracting 42 from both sides of the equation:
42 - x - 42 = 23 - 42
This simplifies to:
-x = -19
To solve for x, multiply both sides of the equation by -1 (to change the sign):
-1 * (-x) = -1 * (-19)
This gives us:
x = 19
So, the value of x is 19.
- c • (36 - 28) = 56
Let's simplify the expression inside the parentheses first:
c • (8) = 56
Next, divide both sides of the equation by 8:
(c • 8) ÷ 8 = 56 ÷ 8
This simplifies to:
c = 7
So, the value of c is 7.
To summarize the solutions: p = 5 x = 19 c = 7
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