Question

1000-y=45×3 231+×=909÷3 75:x=50÷10

Answer 1

1) 1000-у=45*3     2) 231+х=909:3     3) 75:х=50:10
    1000-у=135           231+х=303            75:х=5
     у=1000-135          х=303-231             х=75:5
     у=865                   х=72                      х=15
     Отв: у=865           Отв: х=72             Отв: х=15

Answer 2

Let's solve the equations one by one:

1. 1000 - y = 45 × 3

To solve this equation, we first perform the multiplication on the right side:

1000 - y = 135

Next, we isolate y by subtracting 1000 from both sides:

• y = 135 - 1000

Simplifying further:

• y = -865

So the value of y is -865.

2. 231 + x = 909 ÷ 3

We first perform the division on the right side:

231 + x = 303

To isolate x, we subtract 231 from both sides:

x = 303 - 231

Simplifying further:

x = 72

Therefore, the value of x is 72.

3. 75 : x = 50 ÷ 10

Here, we have a division on both sides. We start by solving the division on the left side:

75 ÷ x = 50 ÷ 10

Simplifying the division:

75 ÷ x = 5

To isolate x, we can multiply both sides by x:

(75 ÷ x) × x = 5 × x

The x on the left side cancels out:

75 = 5x

Finally, we solve for x by dividing both sides by 5:

x = 75 ÷ 5

x = 15

Therefore, the value of x is 15.

To summarize:

• y = -865
• x = 72
• x = 15