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Simplify: 2x + 6y + 2y - x

To answer this question you need to group the different terms to form the shortest equation possible. It is easiest to treat the x terms and the y term as seperate, so you have: 2x - x and 6y+2y Here, x simp...
LD
Answered by Libby D. Maths tutor
4093 Views

Solve 3x – 5 < 16

The question is asking you to isolate, or find out what 'x' is in relation to the equation. Don't be confused by the less than sign '&lt;'. Treat it like an equals sign '='. 3x - 5 =16. So let's get the x by...
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Answered by Judith O. Maths tutor
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solve 6(x + 4) = 2x -4

The first step is to expand the brackets on the left hand side, you can either use the arrow method or the box method for this. This gives you: 6x + 24 = 2x - 4 Then you want to gather all the x's onto the s...
MB
Answered by Martha B. Maths tutor
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Line AB has equation 6x + y - 4 = 1. AB is perpendicular to the line y = mx + 1, find m.

First, we have to know that if 2 lines are perpendicular, the product of their gradients is -1. Next, we have to express the 2 equations in similar ways by rearranging them and making y the common subject. T...
JR
Answered by Jack R. Maths tutor
4080 Views

Solve (3x+6)/4 - (2x-6)/5 = (x+7)/8.

To solve this equation for x, we need to get x on its own. To do this, we first need to multiply through by the denominators of the fractions, as none of them contain an x term. Multiplying through by 8 firs...
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Answered by Laura T. Maths tutor
18465 Views