Question

please help me... how to answer this question in substitution?
2x+3y=7
5x-2y=8

Answer 1

Choose one of the equations and calculate y.

Sub the value of y in the other equation to find x.

When u have x sub it back in an equation to get y.

Answer 2

We'll determine x from the top equation.
2x = 7 - 3y
x = (7-3y)/2
Now, we'll replace x from the 2nd equation by the expression (7-3y)/2
5*(7-3y)/2 - 2y = 8
We'll remove the brackets:
35 - 15y - 4y = 16
-19y = 16 - 35
-19y = -19
y = 1
x = (7-3)/2
x = 2

Answer 3

thank you very much 4 the answer my fren...