Найдите координаты точек b
1) y = 5x - 3 и y = 3x + 1
2) y = -4x + 3 и y = [tex] \frac{1}{2} [/tex] x + 3
3) y = -2x - 10 и y = -x - 7
4) y = 0.5x + 4 и y = 2x + 4
1) y = 5x - 3 и y = 3x + 1
2) y = -4x + 3 и y = [tex] \frac{1}{2} [/tex] x + 3
3) y = -2x - 10 и y = -x - 7
4) y = 0.5x + 4 и y = 2x + 4
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5х-2х=1+3
3х=4
х=3/4
2)-4х+3=1/2х+3
-4х-1/2х=3-3
-9/2х=0
х=0
3)-2х-10=-х-7
-2х+х=-7+10
-х=3
х=-3
4)0,5х+4=2х+4
0,5х-2х=4-4
-1,5х=0
х=0
5х-2х=1+3 а откуда 2х ?
3х=4
х=3/4
5х-2х=1+3
3х=4
х=3/4
5х-3х=1+3
2х=4
х=2