solve Graphically x-y=4 ; 2x3y=3
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Step-by-step explanation:
x - y = 4 -------- 1
2x + 3y = 3 ------2
Multiply 1 equation by 3
3 ( x - y = 4 )
3x - 3y = 12 -------- 3
Adding 2 and 3 equation
2x + 3y = 3
3x - 3y = 12
_________
5x = 15
x = 15 ÷ 5
x = 3
substituting x = 3 in 1 equation
x - y = 4 -------- 1
3 - y = 4
- y = 4 - 1
- y = 1
y = -1
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