Y=–3x +  6y=9 what is the solution to the system of equations? (–21, 9) (9,  –21) (–1, 9) (9,  –1)

ANSWER

The solution is

EXPLANATION

We want to solve the simultaneous equations

and

.

We substitute equation (2) in to equation (1), to obtain

This has now become a linear equation in a single variable .

We solve for x  by grouping like terms.

We divide through by negative 3 to get;

.

Hence, the solution is

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

don't know what that says sorry i can't you

step-by-step explanation:

idk what it says