Solve and proof for the value of A.
0.3A+(0.2A-0.5)+0.2(A+2)=1.3
I have done this question over and over I keep getting answers like 2 or3.25 but when I sub in thoes answers for A It does not work.
A(.3+.2+.2)-.5+.4=1.3
.7A-.1=1.3
.7A=1.4
A= 2
To solve for the value of A in the equation 0.3A + (0.2A - 0.5) + 0.2(A + 2) = 1.3, you'll need to follow a step-by-step process:
1. Start by simplifying the equation using the distributive property:
0.3A + 0.2A - 0.5 + 0.2A + 0.4 = 1.3
2. Combine like terms on both sides of the equation:
0.7A - 0.1 = 1.3
3. Add 0.1 to both sides of the equation to isolate the variable term:
0.7A = 1.3 + 0.1
0.7A = 1.4
4. Divide both sides of the equation by 0.7 to solve for A:
A = 1.4 / 0.7
A = 2
Therefore, the value of A is 2.
If you've tried solving this equation multiple times and obtained other answers like 2 or 3.25 without success, it could be due to errors made during the simplification or arithmetic steps. Additionally, double-checking your calculations and ensuring no mistakes were made will help you attain the correct answer.