Asked by Manu

Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-10.0 solve the elimination method
Answered by Henry
Eq1: 6X - 9Y = 25.5,
Eq2: -2x + 7y = -10.

Multiply Eq2 by 3:
6X - 9Y = 25.5.
-6X + 21Y = -30.
Sum: 12y = - 4.5,
Y = 0.375.

In Eq2, substitute 0.375 for y:
-2X + 7*0.375 = - 10,
-2X = -10 -0.375 = -10.375,
X = 5.1875.

Solution Set: (x,y) = (5.1875,0.375).
Answered by Henry
CORRECTION:
In Eq2, substitute 0.375 for y:
-2X + 7*0.375 = -10,
-2X + 2.625 = -10,
-2X = -10 - 2.625 = -12.625.
X = 6.3125.

Solution Set: (x,y) = (6.3125,0.375).









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