Answer:
x = 3
Step-by-step explanation:

Simplify, divide the numerator and denominator by the same number

÷ 40


Cross products

Answer:
y=
1
2
x;−3y=4+
1
2
x
Rewrite equations:
y=
1
2
x;−3y=
1
2
x+4
Step: Solvey=
1
2
xfor y:
y=
1
2
x
Step: Substitute
1
2
xforyin−3y=
1
2
x+4:
−3y=
1
2
x+4
−3
1
2
x=
1
2
x+4
−3
2
x=
1
2
x+4(Simplify both sides of the equation)
−3
2
x+
−1
2
x=
1
2
x+4+
−1
2
x(Add (-1)/2x to both sides)
−2x=4
−2x
−2
=
4
−2
(Divide both sides by -2)
x=−2
Step: Substitute−2forxiny=
1
2
x:
y=
1
2
x
y=
1
2
(−2)
y=−1(Simplify both sides of the equation)
Answer:
x=−2 and y=−1
Step-by-step explanation:
Sorry if it is too confusing
Short answer: - 1
The first thing you should do is draw this or get a program to do it. I use desmos. It is included. The graph shows one complete cycle every 2*pi intervals (or 360 degrees.)
You will find no lower value that y = - 1 (nor any value greater than y = 1)
Get y by it self and then graph it. Should be y=5x+4