Question

linear equation 3z-2=7​

Answer 1

Answer:

Hi there ! Answer is z = 3 ! Hope it helps!

Explanation:

Given equation is

$3z-2=7$

Now , we will transpose 2 from left to right , its sign is - so it will become +

$3z=7+2\\3z=9$

Now , we will move 3 from left to right , its sign is * so it will become /

$z = 9/3\\z = 3$

Therefore , z = 3

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Answer 2

Given data,

The given linear equation is,

$3z-2=7$

Here we have to find the value of $z$

For this we have to move all the constant terms to RHS.

So, transpose $-2$ to RHS.

Then it becomes $+2$

Now the linear equation is changed as,

$3z=7+2$

$3z=9$

$z=\frac{9}{3}$

Nine can be written as $3\times3$

$z=\frac{3\times3}{3}$

$z=3$

Therefore,  the value of $z$ is $3$