Question

1. solve for one variable.

rewrite the equation as a variable equal to a constant: ( y = 4.5 ).

1. solve for the other variable.

select the equation to use to calculate ( x ). ( 6x - 2y = 9 )
substitute the known value of ( y ) into ( 6x - 2y = 9 ). then solve for ( x ), writing your answer as a variable equal to a constant.

Explanation:

Step1: Substitute $y=4.5$ into equation

$6x - 2(4.5) = 9$

Step2: Calculate $2×4.5$

$6x - 9 = 9$

Step3: Add 9 to both sides

$6x = 18$

Step4: Divide by 6

$x = 3$

Answer:

$x=3$