Question

60+(21-х)=76 (х-14)+8=123

Answer 1

60+(21-х)=76
21-х=76-60
21-х=16
х=21-16
х=5


(х-14)+8=123
х-14=123-8
х-14=115
х=115+14
х=129

Надеюсь правильно)))

Answer 2

Пошаговое объяснение:

60+(21-х) = 76

21-x = 76-60

21-x = 16

x = 21-16

x = 5

(х-14)+8 = 123

x-14 = 123 - 8

x-14 = 115

x = 115+14

x = 129

Answer 3

To solve the system of equations:

1. 60 + (21 - x) = 76
2. (x - 14) + 8 = 123

Let's start by solving each equation separately.

Equation 1: 60 + (21 - x) = 76

First, simplify the expression inside the parentheses by subtracting (21 - x):

60 + 21 - x = 76

Now, combine like terms:

81 - x = 76

To isolate the variable x, subtract 81 from both sides of the equation:

-x = 76 - 81 -x = -5

Now, multiply both sides by -1 to solve for x:

x = 5

Now, let's move on to equation 2:

Equation 2: (x - 14) + 8 = 123

First, simplify the expression inside the parentheses by adding (x - 14):

x - 14 + 8 = 123

Now, combine like terms:

x - 6 = 123

To isolate the variable x, add 6 to both sides of the equation:

x = 123 + 6 x = 129

So, the solution to the system of equations is x = 5 and x = 129. However, this is contradictory. A valid system of equations should have a single solution. Please double-check the equations you've provided, as there may be an error in one of them.