Question

45÷у=72÷8. 162+х=509-68. 1000-a=146×6

Answer 1

$45:y=72:8\\360=72y\\72y=360\\y=360:72\\y=5\\\\162+x=509-68\\162+x=441\\x=441-162\\x=279\\\\1000-a=146*6\\100-a=876\\-a=876-1000\\-a=-124\\a=-1*(-124)\\a=124$

Answer 2

It looks like you have a system of three equations with variables. Let's solve them step by step:

1. 45÷у = 72÷8:

First, simplify both sides of the equation:

45 ÷ у = 9

Now we have the equation:

1. 45 ÷ у = 9

2. 162+х = 509-68:

Simplify both sides of the equation:

162 + х = 441

Now subtract 162 from both sides:

х = 441 - 162 = 279

So, we have:

2. х = 279

3. 1000 - a = 146 × 6:

Perform the multiplication on the right side:

1000 - a = 876

Now subtract 1000 from both sides:

-a = -124

Finally, multiply both sides by -1 to solve for 'a':

a = 124

So, we have:

3. a = 124

To summarize, the solutions are:

1. 45 ÷ у = 9 (No specific value for 'у' is provided, so 'у' can be any value that satisfies this equation).
2. х = 279
3. a = 124