70,547 views
8 votes
8 votes
3(4x - 9) + 1- = 15x+2+7x

Find X

User Olinsha
by
3.1k points

1 Answer

19 votes
19 votes

Answer:

x = -1.9

Explanation:

Finding the value of 'x':

3(4x - 9) + 10 = 15x + 2 + 7x

3*4x - 3*9 + 10 = 15x + 7x + 2 {Distributive property}

Add the like terms on the RHS and add the constants on the LHS.

12x - 27 + 10 = 15x + 7x + 2

12x - 17 = 22x + 2

Subtract 12x from both sides,

-17 = 22x + 2 -12x

-17 = 10x + 2

Subtract 2 from both sides,

-17 -2 = 10x

-19 = 10x

Divide both sides by 10,

x = -19 ÷ 10

x = -1.9

User Daniel Timberlake
by
2.7k points