Question

452-x=168+87 x-516=360:90 518-y=144+2127

Answer 1

453-Х=168+87
-Х=255-453
-Х=-198

Х-516=360:90
Х=4+516
Х=520

518-У=144+2127
-У=2271-518
-У=1753

Answer 2

Let's solve each equation step by step:

1. 452 - x = 168 + 87

First, let's simplify the right side of the equation:

168 + 87 = 255

The equation becomes:

452 - x = 255

To isolate x, we need to move the constant term to the other side of the equation:

452 - 255 = x

197 = x

So the solution to the first equation is x = 197.

2. x - 516 = 360 ÷ 90

First, let's simplify the right side of the equation:

360 ÷ 90 = 4

The equation becomes:

x - 516 = 4

To isolate x, we need to move the constant term to the other side of the equation:

x = 4 + 516

x = 520

So the solution to the second equation is x = 520.

3. 518 - y = 144 + 2127

First, let's simplify the right side of the equation:

144 + 2127 = 2271

The equation becomes:

518 - y = 2271

To isolate y, we need to move the constant term to the other side of the equation:

518 - 2271 = y

-1753 = y

So the solution to the third equation is y = -1753.

To summarize:

1. x = 197
2. x = 520
3. y = -1753