solve this quetions please.............dont spam
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»»»2x + 3y = 6 .......(1)
x + y = 8 .......(2)
multiple the denominator with 2
2x + 3y = 6
2[x + y = 8]
2x + 3y = 6
-2x + [-2y] = -16
__________
0 + 1y = -10
y = -10
substitute in equation (1)
»»» 2x + 3y = 6
»»» 2x + 3(-10) = 6
»»» 2x - 30 = 6
»»» 2x = 6 + 30
»»» 2x = 36
»»» x = 36/2
»»» x = 18
hope this helps you
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