evaluate y-2y when y= 3
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hey I can't give u exact answer as u need to try it I can give u a example use the example and answer ur own question I know the ans but I can't tell you
xample
Problem
Find the value of x for this system.
Equation A: 4x + 3y = −14
Equation B: y = 2
4x + 3y = −14
y = 2
The problem asks to solve for x. Equation B gives you the value of y, y = 2, so you can substitute 2 into Equation A for y.
4x + 3(2) = −14
Substituting y = 2 into
Equation A.
4x + 6 = −14
4x = −20
x = −5
Simplify and solve the equation for x.
Answer
x = −5
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