Question

1) 1000-Х=35+6×8 2)81÷у=63÷7 3)х×8=100-(4×9)

Answer 1

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Answer 2

100-х=35+48
100-х=83
х=100-83=17

81:у=9
у=81:9=9

х×8=100-36
х×8=64
х=64:8
х=8

Answer 3

To solve these equations, we'll need to find the values of the variables (X, у, and х). Let's solve them step by step:

1. 1000 - Х = 35 + 6 × 8

Step 1: Perform the operations on the right side of the equation first. 35 + 6 × 8 = 35 + 48 = 83

Step 2: Now, the equation becomes: 1000 - Х = 83

Step 3: Isolate Х on one side of the equation. To do that, we'll bring 1000 to the other side by subtracting 1000 from both sides. 1000 - 1000 - Х = 83 - 1000

• Х = -917

Step 4: Finally, divide both sides by -1 to find the value of Х: Х = 917

So, the value of X is 917.

2. 81 ÷ у = 63 ÷ 7

Step 1: Perform the operations on both sides of the equation. 81 ÷ у = 9

Step 2: Now, the equation becomes: 9 = 63 ÷ 7

Step 3: Evaluate the right side of the equation. 63 ÷ 7 = 9

Step 4: The equation is now: 9 = 9

This is an identity, meaning it holds true for any value of у.

So, there is no specific value for у; it can be any value.

3. х × 8 = 100 - (4 × 9)

Step 1: Perform the operations on the right side of the equation first. 100 - (4 × 9) = 100 - 36 = 64

Step 2: Now, the equation becomes: х × 8 = 64

Step 3: Isolate х on one side of the equation. To do that, we'll divide both sides by 8. (х × 8) ÷ 8 = 64 ÷ 8 х = 8

So, the value of х is 8.