Question

Solve 5x+8 = 28 using step by step procedure

Answer 1

The required solution is $x=4$.

Step-by-step explanation:

Step 1. Write down the given equation

$\quad 5x+8=28$

Step 2. Transpose $8$ to the right hand side and perform subtraction

$\quad 5x=28-8$

$\Rightarrow 5x=20$

Step 3. Divide both sides by $5$ and make $x$ free of coefficients $>1$

$\quad \dfrac{5x}{5}=\dfrac{20}{5}$

$\Rightarrow x=4$

Step 4. Write down the answer

Thus the required solution is $x=4$

Verification of the solution:

When $x=4$, the value of the left hand side is

$\quad 5(4)+8$

$=20+8$

$=28$, which equals the value on the right hand side

Thus, the solution is verified.

Answer 2

Answer:

= 5x + 8 - 8 = 28 - 8

= i.e. 5x = 20

= 5x/5 = 20/5

= i.e. x = 4

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