Question

62:x+38=40 43+x=500:10 X-720=49:7*9

Answer 1

1)х=31
2)х=7
3)х=783
это точно

Answer 2

1) 62÷х+38 =40
х= 40-38
х= 62÷2
х=31

2) 43+х=500÷10
43+х=50
х=50-43
х=7

3) х-720=49÷7×9
х-720=7×9
х-720=63
х=720+63
х=783

Answer 3

Let's solve each equation step by step:

1. 62:x+38=40

To solve this equation, we'll isolate the variable x.

Subtract 38 from both sides: 62:x = 40 - 38 62:x = 2

To solve for x, we'll take the reciprocal of both sides: x/62 = 1/2

Multiply both sides by 62: x = 62 * (1/2) x = 31

Therefore, the solution to the equation 62:x + 38 = 40 is x = 31.

2. 43 + x = 500:10

In this equation, it seems there is a division operation with "500:10". We need to clarify whether it means dividing 500 by 10 or dividing 10 by 500.

If we assume "500:10" means dividing 500 by 10, then the equation becomes: 43 + x = 500/10 43 + x = 50

Subtract 43 from both sides: x = 50 - 43 x = 7

Therefore, if "500:10" means dividing 500 by 10, then the solution to the equation 43 + x = 500:10 is x = 7.

3. X - 720 = 49:7 * 9

To solve this equation, let's simplify the right-hand side first.

49:7 * 9 = 7 * 9 49:7 * 9 = 63

Now, we can rewrite the equation: X - 720 = 63

Add 720 to both sides: X = 63 + 720 X = 783

Therefore, the solution to the equation X - 720 = 49:7 * 9 is X = 783.