What equation is equivalent to 3[x + 3(4x – 5)] = 15x – 24?

Answer 1

39x - 45 = 15x - 24

Answer 2

Remember in maths. you do the INNER most brackets first .

3[x + 3(4x – 5)] = 15x – 24

So multplying '3' to each term in the Inner most (curved) brackets we have

3[x + 12x - 15] = 15x - 24

3 [ 13x - 15 ] = 15x - 24

We now multply ply '3' the therms in inside the square brackets .

Hence

39x - 45 = 15x - 24

Add '45' to both sides

39x = 15x + 21

Subtract 15x from both sides

24x = 21

Divide both sides by '24'

x = 21/24

Cancel down by '3'.

x = 7/8 The Answer!!!!!