When using substitution to solve the system below, which expression can be substituted into the second equation for y. 4x+y=3 and 2x+3y=4

a. 4-2x/3
b. 3-4x
c. 4-2x

Question

When using substitution to solve the system below, which expression can be substituted into the second equation for y.  4x+y=3 and 2x+3y=4

    a. 4-2x/3
    b. 3-4x
    c. 4-2x

kropot72 · Answer

Can you rearrange the first equation to find an expression for y ?

anonymous · Answer

idk how.

kropot72 · Answer

4x + y = 3
What do you get when you subtract 4x from both sides of this equation?

anonymous · Answer

0+y=-1

kropot72 · Answer

4x + y = 3
Subtractin 4x from both sides gives
4x - 4x + y = 3 - 4x
Can you find an expression for y now?

anonymous · Answer

3 ?

kropot72 · Answer

4x - 4x + y = 0 + y = y = 3 - 4x
y = 3 - 4x