Question

Y=x+3 dan 2x+3y=4 ,cara substitusi,garap pakai caranya

Answer 1

Y = x + 3
2x + 3y = 4

2x + 3y = 4
2x + x + 3 + x + 3 + x + 3 = 4
5x + 9 = 4
5x + 9 - 9 = 4 - 9
5x = -5
x = -1

maka nilai x = -1

maka nilai y = x + 3 = -1 + 3 = 2

HP = {x,y} = {-1,2}

Answer 2

Subtitusi itu dimasukkin
y = x + 3 masukkin ajah ke yang 2x + 3y = 4 jadii
2x + 3(x+3) =4
2x + 3x + 9 = 4
5x + 9 = 4
5x = 4-9
5x = -5
x = -1

massukkin deh ke y = x + 3
y= -1 + 3
y=2
horeyy!!