Solve the equation: 5(x + 2) = 45

Start by writing down the question5(x+2) = 45The aim is to "free" or solve for the variable "x", we work from outside the brackets. First step is to get rid of the 5 on the left hand side. To do this we divide both sides by 5. On the left hand side 5/5 = 1 therefore our answer becomes this:x+2 = 45/5 45/5 = 9, so we can write the equation as:x+2 = 9To get rid of the +2 on the left hand side we then subtract 2 from both sides. Obtaining this:x = 7Which is our final answer.

BS
Answered by Brandon S. Maths tutor

5782 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

A line joins 2 points (2,9) and (5,4). Calculate the gradient of the straight line and then write down the equation of the straight line.


a) If x=4, work out 3(x^2). b) Solve 6x-3=x+11


A cylinder has radius 2cm and height 9cm. A cone has radius r cm and height h cm. The ratio r : h is 1 : 4. The volume of the cone is equal to the volume of the cylinder. Work out the value of r.


Expand the brackets (x-3)(x+4)


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning