Question

Given that 6 x − 4 y = 29 Find x when y = 4

Answer 1

Answer:

$x=15/2=7.5$

Step-by-step explanation:

So we have the equation:

$6x-4y=29$

And we want to find x when y is 4.

So, substitute y for 4:

$6x-4(4)=29$

Multiply:

$6x-16=29$

Add 16 to both sides:

$6x=45$

Divide both sides by 6:

$x=45/6$

Reduce by dividing both layers by 3:

$x=15/2=7.5$

And this is our answer :)

Answer 2

Answer:

$7.5 \: or \:7\frac{1}{2}$

Step-by-step explanation:

$6x- 4 y = 29\\x =?\\y =4$

Substitute 4 for y in the given equation ;

$6x-4(4)=29\\6x -16=29$

Collect like terms

$6x = 29+16$

Simplify

$6x = 45$

Divide both sides of the equation by 6

$\frac{6x}{6} = \frac{45}{6} \\\\x =\frac{15}{2} \:or \: 7.5 \: or \:7\frac{1}{2}$