Solve the following systems of linear equations. [3x+7y= -4 and 2x+5y= -3]
1 answer:
Eliminate
multiply first equatin by -2
mulitply second by 3 and add them
-6x-14y=8
6x+15y=-6
add them
y=2
sub
3x+7(2)=-4
3x+14=-4
minus 14
3x=-18
divide 3
x=-6
(-6,2)
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f(a,b) = 2(a+b)
f(2,3) = 2(2+3)
f(2,3) = 2(5)
f(2,3) = 10
<h2>10/5=2 test per week</h2><h2>7x2=14</h2><h2>Josh took 14 test in 7 weeks</h2>
I think 1700000000000000000
The vertex is (-2,-8)
So the y-value would be -8
Answer:
2x+1
2x-1
2x+4
2x-4
Step-by-step explanation:
