<u><em>The correct answer here is d</em></u>
d = 3a + 3b
d - 3a = 3b
d - 3a/3 = b
Answer:
17.5
Step-by-step explanation:
15.05 divided by 0.86 is 17.5
Sample Response: Both are correct. As long as inverse operations and the properties of equality are used properly, both methods will generate the same solution. They both isolate the variable on one side of the equation.
5x + 4y = 8
-5x + 3y = -1
Let's add both equations, to eliminate x.
5x + 4y - 5x + 3y = 8 - 1
7y = 7
y = 1
Let us substitute this value of y in equation 1, so we can find x.
5x + 4 = 8
5x = 4
x = 4/5