3x - 7 = 4 ... (1)
2x - 2y = 8 ... (2)
In equation transferring the number - 7 to the left hand side of equation we get:
3x = 4 + 7 = 11
Therefore: x = 11/3
Substituting this value of x in equation (2) we get:
2*(11/3) - 2y = 8
Therefore: -2y = 8 - 22/3 = (24 - 22)/3 = 2/3
Therefore: y = (50/3)/(-2) = -1/3.
Answer:
x = 11/3, y = -1/3.
The above solution solution is give based on equation as these are given. It appears in the first equation the second term is given as -7 instead of -y. I am giving below also a solution based on the modified equations>
3x - y = 4 ... (1)
2x - 2y = 8 ... (2)
Multiplying both sides of equation (1) we get:
6x - 2y = 8 ... (3)
Subtracting equation (2) from equation (3) we get:
6x - 2x - 2y + 2y = 8 - 8
Therefore: 4x = 0
Therefore: x = 0
Substituting this value of x in equation (1) we get
3*0 - y = 4
Therefore: -y = 4
Or: y = -4
Answer for modified equations:
x = 0, y = -4.
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