Question

3x + 4 = 5 (x–2) Solve the equation

Answer 1

answer : 7

explanation : given equation, 3x + 4 = 5(x - 2)

or, 3x + 4 = 5 × x - 5 × 2

or, 3x + 4 = 5x - 10

subtract 3x from both sides so you remove the variable term on left side.

i.e., 3x + 4 - 3x = 5x - 10 - 3x

or, (3x - 3x) + 4 = (5x - 3x) - 10

or, 0 + 4 = 2x - 10

or, 4 = 2x - 10

subtract 4 from both sides so you remove the constant term on left side.

or, 4 - 4 = 2x - 10 - 4

or, 0 = 2x - 14

now displace -14 from right to left with change their sign.

i.e., -(-14) = 2x

or, 14 = 2x

or, 2x = 14

or, 2x/2 = 14/2

or, x = 7

hence, value of x = 7

Answer 2

Answer:

7

Step-by-step explanation:

Given equation 3x+4=5(x-2)

Or else 3x+4=5Xx-10

Or , 3x+4=5x-10

Subract 3x from both sides so you remove the variable therm from LHS

ie..3x+4-3x=5x=5x-10-3x

Or..(3x-3x) +4=(5x-3x)-10

Or..0+4=2x-10

O ,4=2x-10

Subract 4 from both sides so you remove the constant therm from LHS

Or...4-4=2x-14

Or..0=2x-14

Now displace -14 from right to left with change their sign

So..-(-14)=2x

Or..14=2x

Or ..2x/2= 14/2

Or...x=7

Hence , value of x=7