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Solve the equation (4x-3)/2 + (7x+1)/6 = 29/2.

x = 5
BA
Answered by Bethan A. • Maths tutor
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What is the expansion of (x + 4)(x - 5) ?

To expand this we multiply the first term in each bracket together to get x 2 Then we do the first bracket's first term by the second bracket's second term to get -5x The we do the first bracket's second ter...
HD
Answered by Honor D. • Maths tutor
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Solve the equations x-y=1 and 5x-3y=13

These equations are what we call 'simultaneous' which means they are solved together. To do this, we need to make one of the variables (x or y) the subject of either of the equations.Rearranging the first eq...
CK
Answered by Christopher K. • Maths tutor
5062 Views

Solve x^2 + 7x + 6 = 0

ax 2 + bx + c 1) First factorise the quadratic equationTwo numbers whose product is 'c' and sum is 'b'In this question, c= 6 and b= 76 x 1 = 6 and 6 + 1 = 7So your two numbers are 6 and 1--> x 2 + 7x + 6 ...
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Answered by Natasha W. • Maths tutor
4866 Views

There are 6 orange sweets and n total sweets in a bag. The probability of picking two sweets one at a time randomly and both being orange is 1/3. Show that n^2 - n - 90 = 0

Don't panic, focus on what you do know.You know 6/n * 5/(n-1) = 1/3or 30/(n^2-n) = 1/3simplify this to reach the target expression.
HA
Answered by Hussain A. • Maths tutor
3007 Views