tolong bantuanya ya, pake caranya #makasih

22.
½x + y = 2½
x + 2y = 5
x = 5 - 2y

3x -4y = -5
3(5-2y) -4y = -5
15 - 6y -4y = -5
-(6+4)y = -5-15
-10y = -20
y = -20/-10
y = 2. >>>> q = 2
x = 5 -2(2) = 1 >>> p = 1
p+q = 1+2 = 3
jawaban : A

23.
m = (-5-3)/(-2-4) = -8/-6 = 4/3
y-1 = 4(x-(-2)/3
3(y-1) = 4(x+2)
3y -3 = 4x +8
3y -4x -3-8 = 0
4x -3y +11 = 0
jawaban : C

24.
7 = (3-5p)/(p-3)
7(p-3) = 3-5p
7p + 5p = 21+3
12p = 24
p = 24/12
p = 2
jawaban : B