Объяснение:
1. (1, 32 ; 0,66)
{y= -3.3 +3x
{x-2y=0
x-2(-3.3 +3x)=0
x=1.32
y= -3.3 +3*1.32
y=0.66
2. (7.9375; -0.4375)
{x=7.5 -y
{x-7y=11
7.5-y-7y=11
y= -0.4375
x=7.5 - (-0.4375)
x=7.9375
Объяснение:
1. (1, 32 ; 0,66)
{y= -3.3 +3x
{x-2y=0
x-2(-3.3 +3x)=0
x=1.32
y= -3.3 +3*1.32
y=0.66
2. (7.9375; -0.4375)
{x=7.5 -y
{x-7y=11
7.5-y-7y=11
y= -0.4375
x=7.5 - (-0.4375)
x=7.9375