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Simplify: 3(x+5)-4(2x+1)

This is a simple question where students need to use BIDMAS to solve the equation. The easiest method is to seperate the two sides and solve individually, then combine. Firstly, 3(x+5) multiplies out to g...

Answered by Magdalena K. • Maths tutor

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Anna has 6 bananas. Ben has 2.5 times more bananas than Anna. Callum has a third as many bananas as Anna and Ben have together. How many bananas do Anna, Ben and Callum have together?

Anna: 6 bananas. Ben: 6*2.5 = 15 bananas. Callum: (6+15)/3 = 7 bananas Altogether they have 6 + 15 + 7 bananas = 28 bananas

Answered by Avani M. • Maths tutor

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Solve this equation x^2 +4x - 5

Have you seen anything like this before?

What do you understand by this equation?

How do you expand brackets? Grid/smiles and eyebrows

How confident are you with factors and times ...

Answered by Zeenat M. • Maths tutor

3202 Views

Solve the simultaneous equations: 6a + b = 16 and 5a - 2b = 19

Rearrange the first equation to give b as the subject.

b = 16 - 6a

Then substitute that equation for b into the second equation.

5a - 2(16 - 6a) = 19

Simplify this equation (re...

Answered by Francesca L. • Maths tutor

3853 Views

Complete this substitution question: x^3 - 25 = 103 - x^3

Firstly, let's move the x^3's onto the same side (and preferably keep them positive). Let's add x^3 to both sides, which means the RHS will now read '2x^3 - 25' and the LHS will read '103'. Next we wan...

Answered by Aoife J. • Maths tutor

2841 Views