Solve the equation 3x + 11 = 56
To begin this question, we need to subtract 11 from both sides. 3x + 11 - 11 = 56 - 11The two 11s on the left hand side cancel each other, while 56 - 11 = 45. Therefore, 3x = 45Now we need to divide both sides of the equation by 3 to find the value of x.3x/3 = 45/3 3x/3 = x while 45/3 = 15Therefore x = 15.
MP
Related Maths 13 Plus answers
All answers ▸4, 7, 9, 10, 10 mean, median, mode, range
The distance from the Earth to the Sun is 93 million miles. Assume it takes 365 days for the Earth to travel once around the Sun the Earth travels in a circle with the Sun at the centre. Work out the average speed of the Earth in miles per hour
Solve (x-1)^2-2(x-1)-3=0
I am thinking of two numbers. When I add my numbers, the answer is 1 When I multiply my numbers, the answer is 0.09 What are my numbers?