Decide which variable has a coefficient of 1 or -1, and solve for that variable in terms of the other variable. $4 x + y = 3$
A) $y = - 3 - 4 x$
B) $y = 3 - 4 x$
C) $y = 4 x + 3$
D) $y = 3 x - 4$
E) $y = 4 x - 3$

Question

Quizplus · Accepted Answer

To solve for a variable in terms of the other variable, we want to isolate that variable on one side of the equation. In this case, we want to isolate y. We can do this by subtracting 4x from both sides:
$$4x + y - 4x = 3 - 4x$$
Simplifying gives:
$$y = 3 - 4x$$
So the correct answer is B, where the coefficient of x is -4, which we can flip and make positive to get 4.

Decide Which Variable Has a Coefficient of 1 or -1 4x+y=34 x + y = 34x+y=3

Decide Which Variable Has a Coefficient of 1 or -1 $4 x + y = 3$