Question

1)9(143-13х)=234 2)17(5х-16)=238

Answer 1

Ответ:

1) 9 ;2) 6

Пошаговое объяснение:

1)143-13х=234:9

143-13х=26

13х=143-26

13х=117

х=117:13

х=9

2)5х-16=238:17

5х-16=14

5х=14+16

5х=30

х=30:5

х=6

Answer 2

To solve these equations, you'll need to isolate the variable x. Here's how you can do it for each equation:

1. 9(143 - 13x) = 234

First, distribute the 9 on the left side:

9 * 143 - 9 * 13x = 234

1287 - 117x = 234

Now, subtract 1287 from both sides:

-117x = 234 - 1287

-117x = -1053

Finally, divide both sides by -117 to solve for x:

x = -1053 / -117 x = 9

So, the solution to the first equation is x = 9.

2. 17(5x - 16) = 238

First, distribute the 17 on the left side:

17 * 5x - 17 * 16 = 238

85x - 272 = 238

Now, add 272 to both sides:

85x = 238 + 272

85x = 510

Finally, divide both sides by 85 to solve for x:

x = 510 / 85 x = 6

So, the solution to the second equation is x = 6.