Question

find the value of x:-3(5x-10)=60​

Answer 1

$\huge\bold{\gray{\sf{Answer:}}}$

Explanation:

Given :

equation :3(5x-10)=60

To Find :

Value of 'x'

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$= > 3(5x - 10) = 60$

$= > 15x - 30 = 60$

Taking constant term one side and variable other :-

Here, 30 is being subtracted on left hand side when we shift it to the right side it's sign gets changed from negative to plus.

$= > 15x = 60 + 30$

$= > 15x = 90$

$x = \frac{90}{15} = 6$

$\huge\bold{\red{x=6}}$

$\huge\bold{Check:-}$

$= > 3(5 \times 6 - 10) = 60$

$= > 3(30 - 10)$

$= > 20 \times 3 = 60$

Therefore,L.H.S=R.H.S

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For Calculation:-

• 15×1=15
• 15×2=30
• 15×3=45
• 15×4=60
• 15×5=75

• $\bold{\purple{15×6=90}}$

Answer 2

${\huge{ \boxed{ \boxed{ \underline{ \underline{ \sf{ \purple{ \star{Answer{ \star}}}}}}}}}}$

Required Solution of the equation -3(5x - 10) = 60 = -2

Step-by-step explanation:

$\implies- 3(5x - 10) = 60$

$\bf \: \: Apply \: Distributive \: Property </p><p>$

$\implies- 3 \times 5x - 3 \times - 10 = 60$

$\implies \: - 15x + 30 = 60$

$\implies - 15x + 30 = 60$

$\rm \: Move \: the \: numerical \: terms \: to \: right \: side \:$

$\implies - 15x = 60 - 30$

$\implies - 15x = 30$

$\implies x = \frac{30}{ - 15}$

$\implies \: x = - 2$

$\bf \: So, x = - 2$

${\bf{\huge{Checking}}}$

$\sf \:To\: check \:Our \:Answer \:we\: have\: to \:substitute \:the \:value \:of \:x \:in \:the\: equation\: -3(5x - 10) = 60$

We go the value of x as - 2

So, $\implies$ - 3 ( 5 × - 2 - 10) = 60

$\implies$ -3 ( - 10 - 10) = 60

$\implies$ -3 × - 20 = 60

$\implies$ 60 = 60

So, LHS = RHS

So, our Answer is Correct ✔✔