Solve to find x: 32x + 43 = -8x - 17

In order to find 'x', one must be able to isolate x on one side of the equation. This would be achieved firstly by adding +8x to both side of the equation:The left hand side would thus look like this: 40x + 43The right hand side would look like this: -17 (as -8x + 8x = 0)Now that we have x on one side of the equation, we can solve it to find the value of x.Our equation now looks like this: 40x + 43 = -17We next would subtract 43 from both sides.This leaves the left hand side of the equation as: 40x (as 43 - 43 = 0)It would also leave the right hand side as: -60 (-17 - 43 = -60)Now we have all the x's on one side, with a value on the other: 40x = -60From here, we can divide both sides by 40, leaving the equation as follows: x = -1.5 or x = -3/2.

FB
Answered by Francis B. Maths tutor

3318 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 3x^2 - 4x - 6 = 0.


P=(3a+5)/(4-a) Make a the subject


James wins the lottery and gets £200,000. He decides to spend 10% of his winnings and invest the rest. From the money he has invested, he receives interest of 3% per year. How much money does James have after 5 years (to the nearest pound)?


How would you differentiate a function such as 4x^3


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences