Question

Could someone explain step by step, how to solve: x^2 + 3x = x^2 + 11x + 28

Answer 1

1st collect like terms

subtract x^2 from both sides

leaves
3x = 11x + 28

Answer 2

I've gotten to that stage, but I need to find what X is, as it's a simultaneous equation.

Answer 3

its not simultaneous

just subtract 3x from both sides

8x + 28 = 0

can you solve that..?

Answer 4

Ah right I see, thanks! x=-7/2.

Answer 5

hope it helps

Answer 6

Yes, it helped me a lot, thanks again :)