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The solution of the equation for y is y = 5 - 2x and the values of y are 9, 5 and -1
The equation is given as
y + 2x = 5
Subtract 2x from both sides of the equation
So, we have
y + 2x - 2x = 5 - 2x
Evaluate the like terms
y = 5 - 2x
Next, we solve the function for the values of x
When x = -2, we have:
y = 5 - 2 * -2
Evaluate
y = 9
When x = 0, we have:
y = 5 - 2 * 0
Evaluate
y = 5
When x = 3, we have:
y = 5 - 2 * 3
Evaluate
y = -1
Hence, the solution of the equation for y is y = 5 - 2x and the values of y are 9, 5 and -1
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The value of y when x = -2 , 0 , 3 are 9, 5 and -1 respectively.
Given the equation;
y + 2x = 5
Make 'y' the subject of formula
y = 5 - 2x (1)
When x = -2
Let's substitute the value of x as -2 in equation (1)
y = 5 - 2(-2)
expand the bracket
y = 5 + 4
y = 9
When x = 0
Substitute the value of x = 0
y = 5 -2(0)
y = 5 - 0
y = 5
When x = 3
Substitute the value of x = 3
y = 5 - 2(3)
y = 5 - 6
y = -1
Thus, the value of y when x = -2 , 0 , 3 are 9, 5 and -1 respectively.
Learn more about linear equations here:
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