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Mathematics
15 February, 03:57
X + 5y = 28 2x + 3y = 21 Solve for x and y.
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Bella
15 February, 04:23
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First what we gonna do is solve for y.
x+5y=28 Subtract 5y both sides.
-5y - 5y
x=-5y+28 Then you have to replace x with the equation.
2 (-5y+28) + 3y=21 Multiply.
-10y+56+3y=21 Combine like terms and subtract 56 both sides.
-56 - 56
-7y=-35 Divide - 7 both sides.
y=5 Simplify.
x=-5 (5) + 28 Multiply and add.
x=-25+28
x=3
Heres your answer x=3 and y=5.
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