Respuesta :
Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
(20,−1)
Equation Form:
x=20,y=−1
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The solution to the system of equation is (20, -1)
System of equation
Given the system of eequation
- 3x – 6y = 66
- 1/4x + 2y = 3
From equation 1;
x - 2y = 22
x = 22 + 2y ........ 3
Substitute equation 3 into 2 to have:
1/4(22+2y) + 2y = 3
22+2y + 8y = 12
10y = 12 - 22
10y = -10
y = -1
Substitut y = -1 into x = 22 + 2y
x = 22 - 2
x = 20
Hence the solution to the system of equation is (20, -1)
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