Top answers

Solve the following equation: 5x - 1 = 3x + 7

5x - 1 = 3x + 75x = 3x + 82x = 8x = 4
DH
Answered by Daragh H. • Maths tutor
5385 Views

How do I write a good English Language essay?

The first point to consider is what type of essay you are being asked to write. Is it a persuasive or argumentative essay? Do you need to express your own opinion? It is a good idea to spend some time planni...
JN
Answered by Jenny N. • English tutor
2451 Views

Solve the simultaneous equations 3x + y = -4 and 3x - 4y = 6

When solving simultaneous equations our goal is always to use the equations given, which each have two unknowns in them, in order to find an equation with only one unknown. In this example, we can see that b...
SE
Answered by Sofya E. • Maths tutor
21792 Views

If A is divided by B, the result is 5/7. If B is divided by C, the result is 4/5. What is the result of A divided by C ?

A=5 when B=7, B=4 when C=5. (Using Ratios, 5:7 & 4:5) Knowing the relationship between both A & C with B means that we can find the relationship between A&C themselves. (A=5, B=7)*4 ; A=20 when B...
IA
Answered by Inez A. • Maths tutor
3585 Views

How do you balance an equation

First write out the equation given:Na + O 2 —> Na 2 ONow count how many oxygen atoms are on the LHS of equation (2) and how many are on the RHS (1). This means you must put a 2 in front of the Na 2 O to B...
LS
Answered by Lauren S. • Chemistry tutor
2593 Views