Question

if z+5=4,what is the value of 3z+6?
please answer.if anyone give the correct answer I will mark them brainliest​

Answer 1

Answer:

z = 4- 5 =

z = -1 therefore the value of z is -1

(3× -1 ) +6

-3 +6

3 ans)

Answer 2

Answer :-

• The value of 3z + 6 is 3.

Given :-

• z + 5 = 4.

To find :-

• The value of 3z + 6.

Step-by-step explanation :-

• In this question, it has been given that z + 5 = 4, which is an equation. We are asked to find the value of 3z + 6. It's clear that we can't do this without finding the value of z. So, first we have to find the value of z using the equation given to us, and then we can use it to find 3z + 6 by substituting the value of z in this expression.

Calculations :-

Let's solve the given equation first.

$\sf Q) \: z + 5 = 4$

Transposing 5 from LHS to RHS, changing it's sign,

$\sf\Rightarrow z = 4 - 5$

On simplifying,

$\sf \Rightarrow z = - 1.$

• The value of z is -1.

• So, let's now find the value of 3z + 6.

$\tt\Rightarrow3z + 6$

Substituting the value of z,

$\tt\Rightarrow3 \times ( - 1) + 6$

Multiplying 3 by (-1),

$\tt\Rightarrow( - 3) + 6$

Adding 6 to (-3),

$\tt\Rightarrow3.$

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• Hence, the value of 3z + 6 = 3.