solve
8x -(5x +4)=5
3x-4 =5
3x-4 +4 =5 +4
3x =9
x =3
is this right????
Right.
Please don't put a teacher's name in the subject line or name on your posts. In this case I don't have the knowledge to help you with some of your questions. But other teachers may not read your questions since they're addressed to me.
Yes, your solution is correct!
To solve the equation 8x - (5x + 4) = 5, you followed the correct steps. Here's a breakdown of the solution:
1. Start by removing the parentheses using the distributive property. The expression inside the parentheses is 5x + 4, so it becomes -(5x + 4) = -5x - 4. The equation becomes 8x - 5x - 4 = 5.
2. Combine like terms on the left side of the equation. 8x - 5x is equal to 3x. So we have 3x - 4 = 5.
3. To isolate the variable x, add 4 to both sides of the equation. This cancels out the -4 on the left side, and we get 3x = 9.
4. Finally, divide both sides of the equation by 3 to find the value of x. 3x/3 equals x, and 9/3 equals 3. Therefore, x = 3.
So, your solution of x = 3 is correct!