work out the value of 4a + 2b when a = 4 and b = 3
To solve this question you want to do it step by step.
Firstly replace the 'a' with '4' and calculate the first part of the sum. 4 multiplied by 4, which is 16.
Next replace 'b' with '3' and calculate the second part. 2 multiplied by 3, which is 6.
once you have calculated both values simply add them together. 16 + 6 = 22
JF
Related Maths GCSE answers
All answers ▸How do I know how many roots a quadratic equation has?
P=(3a+5)/(4-a) Make a the subject
An isosceles triangle has a base with length x+4 and the other two sides have length x+3. The perimeter of this isosceles triangle is 16cm. Find the area of the triangle.
Simplify x^2 - 9x + 20