Question

276+x:7равно 304 9*y-67 равно 77 603-а равно 420:4

Answer 1

276+х:7=304
х:7=304-276
х:7=28
х=4


9у-67=77
9у=77-67
9у=10
у=1 1/9

603-а=420:4
603-а=105
-а=105-603
-а=-498
а=498

Answer 2

To solve the equations, let's find the values of x, y, and a:

1. 276 + x = 304 To find the value of x, subtract 276 from both sides of the equation: x = 304 - 276 x = 28

So, x is equal to 28.

2. 9 * y - 67 = 77 To find the value of y, add 67 to both sides of the equation, then divide by 9: 9 * y = 77 + 67 9 * y = 144 y = 144 / 9 y = 16

So, y is equal to 16.

3. 603 - a = 420 / 4 To find the value of a, first, solve the right-hand side of the equation: 420 / 4 = 105

Then, subtract 105 from both sides of the equation: 603 - a = 105

Finally, solve for a by subtracting 603 from both sides: a = 603 - 105 a = 498

So, a is equal to 498.

The solutions are: x = 28 y = 16 a = 498