X + Y = 3, 3x - 4y =-19, Find The Answer For X And Y
X + y = 3
3x - 4y =-19
Find the answer for x and y
x + y = 3 ===》 y = 3- x
Substitute in the below equation.
3x - 4y = -19
3x - 4(3-x) = -19
3x - 12 + 4x = - 19
7x = -19 + 12 = -7
x = -7/7 = -1
y = 3- x = 3 - (-1) = 3+1 = 4
x = -1 , y = 4
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