Y = −3x 4x + y = 2

y = 7x −
2x + y = 13

x = −5y − 4
x − 4y = 23

−4x + 6y = −20
2x − 3y = 10

3x − y = 1
−2x + y = 2

y = − 3x
y = 7 + 4x

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

b

step-by-step explanation:

step-by-step explanation:

i think its about 8