Question

629-(333-у)=459 (357-(у-281))+112=40213*х-9*х-16=27-719980:(7*х-15)=54

Answer 1

629-333+у=459
у=459-629+333
у=163

(357-(у-281))+112=402
(357-у+281)+112=402
-у+638+112=402
-у=402-112-638
-у=-348
у=348

13х-9х-16=27-7
13х-9х=27-7+16
4х=36
х= 36:4
х=9

19980:(7х-15)=54
19980:54=7х-15
370=7х-15
-7х=-385
7х=385
х=385:7
х=55

Answer 2

To solve the equation step by step, let's break it down:

1. Solve the equation 629 - (333 - u) = 459 + (357 - (u - 281)) + 112: - Start by simplifying the inner parentheses on both sides: 629 - (333 - u) = 459 + (357 - u + 281) + 112 - Simplify further by removing the outer parentheses: 629 - 333 + u = 459 + 357 - u + 281 + 112 - Combine like terms: 296 + u = 1209 - u + 393 - Combine like terms again: u = 1209 - 393 - 296 + u - u - Simplify: 0 = 520 - Since we have arrived at a contradiction (0 = 520), the given equation is not solvable. There is no solution.

2. Solve the equation 40213 * x - 9 * x - 16 = 27 - 719980 / (7 * x - 15) = 54: - Start by simplifying the equation: 40213 * x - 9 * x - 16 = 27 - 719980 / (7 * x - 15) = 54 - Combine like