What is the answer 4+3x = - 2y

First add 2y to both sides

so 4 + 3x + 2y = 0

then subtract 4 from both sides

so 3x + 2y = - 4

that is standard form

now subtract 3x from both sides

2y = 3x - 4

now divide by 2 on both sides

y = 1.5x - 2

This is solved for y and is slope intercept form

starting from original subtract 4 from both sides

so 3x = - 2x - 4

now divide by 3 on both sides

so x = - 2/3x - 4/3

this is solved for x

hope any of that is what you needed.