14x+4(7)=y (y=154) what is the value of x

x = 9

Step-by-step explanation:

So lets substitute, so the equation is;

14x + 4(7) = 154

Next, lets distribute;

14x + 28 = 154

Subtract 28 from both sides

14x = 126

Divide both sides by 14

x = 9

Since y is 154, the equation is 14x + 4(7) = 154.

Next, you multiply 4 and 7 that equals to 28. The equation is now : 14x + 28 = 154.

Third, you going to cancel 28 and -28 because they both equal to zero ( 0 ). Now you do 154 minus 28. It’s equals to 126.

this is the new equation: 14x = 126.
you now going to divide 14 each under the numbers 14 divided by 14 is 1, so it’s canceled out. Now focus on 126 divided by 14, it’s equals to 9

The answer is x = 9.

18: Safe volume: s <= 115. Unsafe: s > 115.

19: 2-a, 1-b, 3-c, 4-d

20a: Justin is incorrect. 12 is a solution. 12 >= 12 is a true statement.

20b: f > 12

Step-by-step explanation: