У 2x+y.
Y=2x+4 how do I solve this

Y = 2x + 4

Step 1: Flip the equation.
2x + 4 = y

Step 2: Add -4 to both sides.

2x + 4 + − 4 = y + − 4
2 x = y − 4

Step 3: Divide both sides by 2.

2x/2 = y − 4 / 2

x = 1/2 y - 2

x = 1/2 y − 2

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*