5x-9y=113x+7y=19.......plz help serious..........
ummmmmm wats the problem
answered - see link below
while you were waiting, did you review your materials and actually make an effort to solve it?
To solve this system of equations, you can use the method of substitution or the method of elimination. Let's use the method of substitution:
Step 1: Solve one equation for one variable in terms of the other variable.
Let's solve the second equation for x:
3x + 7y = 19
3x = 19 - 7y
x = (19 - 7y) / 3
Step 2: Substitute the expression for x in terms of y into the other equation.
Now, substitute the value of x into the first equation:
5x - 9y = 11
5((19 - 7y) / 3) - 9y = 11
Step 3: Simplify and solve for y.
Rewriting the equation in terms of y:
(95 - 35y) / 3 - 9y = 11
(95 - 35y) - 27y = 33
95 - 62y = 33
-62y = 33 - 95
-62y = -62
y = (-62) / (-62)
y = 1
Step 4: Substitute the value of y into either of the original equations and find x.
Using the second equation:
3x + 7(1) = 19
3x + 7 = 19
3x = 19 - 7
3x = 12
x = 12 / 3
x = 4
So, the solution to the system of equations is x = 4, y = 1.