12-(x+3)=10
first step 12-4x=10
-4x=-2
what is wrong with this step?
12-(x+3)=10
12 - 3 - x = 10
9 - x = 10
-x = 10 - 9
x = -1
Thank you
can you check this problem
15=2(q+4)+3
15=2q+8+3
15=2q+11
4=2q
q=2
thank you so much
You're welcome.
15=2(q+4)+3
15 = 2q + 8 + 3
15 - 11 = 2q
4 = 2q
2 = q
You're right.
The step you provided is incorrect. Let's break down the correct steps to solve the equation 12 - (x + 3) = 10:
1. Start with the original equation: 12 - (x + 3) = 10.
2. To simplify the equation, we need to remove the parentheses. Distribute the negative sign (-) to both terms inside the parentheses: 12 - x - 3 = 10.
3. Combine like terms on the left side of the equation: 9 - x = 10.
4. To isolate the variable x, we need to move the constant term (-9) to the right side of the equation. To do this, we can add 9 to both sides: 9 - x + 9 = 10 + 9.
5. Simplify both sides: 9 + 9 - x = 19.
6. Combine like terms: 18 - x = 19.
7. Now, to solve for x, we need to move the constant term (-18) to the right side of the equation. To do this, we can subtract 18 from both sides: 18 - x - 18 = 19 - 18.
8. Simplify both sides: -x = 1.
9. Finally, to isolate x, we need to multiply both sides by -1: -1 * (-x) = -1 * 1.
10. Simplify: x = -1.
In summary, the correct step was combining like terms (9 - x) = 10, but the rest of the steps were not correctly followed.