Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared", "cubed" etc.
x = y = 3
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
2X - 5Y = 11 - 2X + 3Y = - 9 ----------------------just add 2Y = 2 Y = 1 --------------now, insert into one of the equations to find X 2X - 5(1) = 11 2X - 5 = 11 2X = 16 X = 8 ----------------check in both equations 2(8) - 5(1) = 11 16 - 5 = 11 11 = 11 ----------------one checked - 2(8) + 3(1) = - 9 - 16 + 3 = - 9 - 13 does not equal - 9 ---------------------------------an inconsistent system; check with substitution on bottom equation - 2X + 3Y = - 9 - 2X = - 3Y - 9 X = 3/2Y + 9/2 ---------------------insert back into both equations, bottom first - 2(3/2Y + 9/2) = - 9 -3Y - 9 = - 9 obviously this is inconstant and leads to Y = 0 -----------------------------------------------------------------no need to try top, this system is inconsistent.
post an equation first.
If you mean 3x+2y = -5 and -2x+3y = -5 then they are straight line equations
If you mean: 6x-3y = -33 and 2x+y = -1 Then solving the simultaneous equations by substitution: x = -3 and y = 5
x = y = 3
2x - y = 15 2x + 3y = -21 As you observe both equations (having different slopes), you see that the system is consistent, and it has only one solution.
{-1,-2}
Here are some practice problems for systems of equations: Solve the following system of equations: 2x 3y 10 4x - y 5 Find the solution to the system of equations: 3x 2y 12 x - y 3 Determine the values of x and y that satisfy the system of equations: 5x 4y 20 2x - 3y 1 Hope these help with your practice!
2x + 3y = 18 2x - 3y = 20
Without any equality signs the given terms can't be considered to be equations.
(-4,-5)
equivalent equations
(10, 2)
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
2X - 5Y = 11 - 2X + 3Y = - 9 ----------------------just add 2Y = 2 Y = 1 --------------now, insert into one of the equations to find X 2X - 5(1) = 11 2X - 5 = 11 2X = 16 X = 8 ----------------check in both equations 2(8) - 5(1) = 11 16 - 5 = 11 11 = 11 ----------------one checked - 2(8) + 3(1) = - 9 - 16 + 3 = - 9 - 13 does not equal - 9 ---------------------------------an inconsistent system; check with substitution on bottom equation - 2X + 3Y = - 9 - 2X = - 3Y - 9 X = 3/2Y + 9/2 ---------------------insert back into both equations, bottom first - 2(3/2Y + 9/2) = - 9 -3Y - 9 = - 9 obviously this is inconstant and leads to Y = 0 -----------------------------------------------------------------no need to try top, this system is inconsistent.