-2x+1/2y=18
xint is where y=0
-2x+0=18
-2x=18
divde by -2
x=-9
xint isi (-9,0)
Answer:
x= -2, y = -2
Step-by-step explanation:
Solve the following system:
{2 y - 4 x = 4 | (equation 1)
{4 x - y = -6 | (equation 2)
Add equation 1 to equation 2:
{-(4 x) + 2 y = 4 | (equation 1)
{0 x+y = -2 | (equation 2)
Divide equation 1 by 2:
{-(2 x) + y = 2 | (equation 1)
{0 x+y = -2 | (equation 2)
Subtract equation 2 from equation 1:
{-(2 x)+0 y = 4 | (equation 1)
{0 x+y = -2 | (equation 2)
Divide equation 1 by -2:
{x+0 y = -2 | (equation 1)
{0 x+y = -2 | (equation 2)
Collect results:
Answer: {x = -2
, y = -2
Answer:
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Step-by-step explanation:
1 Solve for <span>yy</span> in <span>-2x+y=1.3<span>−2x+y=1.3</span></span>How?
<span>y=1.3+2x<span>y=1.3+2x</span></span>
2 Substitute <span>y=1.3+2x<span>y=1.3+2x</span></span> into <span>2(0.5x-y)=4.6<span>2(0.5x−y)=4.6</span></span>How?
<span>2(-1.5x-1.3)=4.6<span>2(−1.5x−1.3)=4.6</span></span>
3 Solve for <span>xx</span> in <span>2(-1.5x-1.3)=4.6<span>2(−1.5x−1.3)=4.6</span></span>How?
<span>x=-2.4<span>x=−2.4</span></span>
4 Substitute <span>x=-2.4<span>x=−2.4</span></span> into <span>y=1.3+2x<span>y=1.3+2x</span></span>How?
<span>y=-3.5<span>y=−3.5</span></span>
5 Therefore,
<span>x=-2.4<span>x=−2.4</span></span>
<span>y=-3.5<span>y=−3.<span>5</span></span></span>
