To solve for w, we need to isolate the variable w on one side of the equation.
First, distribute 0.7 to both terms inside the parentheses:
0.7w + 0.7(1.2) = 2.1
Simplify the expression inside parentheses:
0.7w + 0.84 = 2.1
Subtract 0.84 from both sides of the equation:
0.7w = 2.1 - 0.84
Simplify the right side of the equation:
0.7w = 1.26
To solve for w, divide both sides of the equation by 0.7:
w = 1.26 / 0.7
Simplify:
w ≈ 1.8
Therefore, the solution for w is approximately 1.8.
The correct answer choice is B. 1.8.
Solve for w
0.7 (w+1.2)=2.1
A. -0.9
B. 1.8
C. 4.2
D. 0.9
1 answer