solve for x and y by substitution method 3 X upon 2 minus 5 Y upon 3 equal to minus 2 and X upon 3 + Y upon 2 equal to 13 by 6
Answers
Answered by
77
Step-by-step explanation:
3x/2 - 5y/3 = -2
x/3+y/2 = 13/6
9x-10y/6=-2
9x-10y=-12
2x +3y =13
subtracting equation 2 from 1
9x -10y-(2x + 3y) = -12-(13)
7x -7y = -15
7(x-y) = -15
x- y =-15/7
x=y -15/7
substituting the value of x in equation 1
3(y-15/7)/2 -5y/3 = -2
3y/2 -15/14 - 5y/3 = -2
9y - 10y/6 = -2 +15/14
- y/6 = -13/14
y = 39 / 7
find x yourself
Answered by
41
Answer:
Step-by-step :
3x/2 - 5y/3 = -2
x/3+y/2 = 13/6
9x-10y/6=-2
9x-10y=-12
2x +3y =13
subtracting equation 2 from 1
9x -10y-(2x + 3y) = -12-(13)
7x -7y = -15
7(x-y) = -15
x- y =-15/7
x=y -15/7
substituting the value of x in equation 1
3(y-15/7)/2 -5y/3 = -2
3y/2 -15/14 - 5y/3 = -2
9y - 10y/6 = -2 +15/14
- y/6 = -13/14
y = 39 / 7
find x yourself
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