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Label the equations 1) 5x+5y = 6 and 2) 7x+3y = 6 . Then rearrange equation 1 to make x the subject of the equation: 5x = 6-5y. You would then simplify this equation to find the equation for x: x = 6/5 - ...

The formula for the area of a circle is pir²,therefore for semi-circle, the formula becomes1/2pir²
Using our known values this is 1/2pi*16 (4<...

x y-3 10-2 4-1 00 -21 -22 03 4
And then be able to plot out these points on a simple graph.
The x-coordinate of the turning ...

Rearrange the second equation (or first) in terms of y (or x) y = 2-xthen subsitute into the other equation 3x + (2-x) = 4The solve for x : 2x = 2 x = 1then subsitute that value for x into any equation an...

x² + 4x + 3 is a quadratic equation. We're looking for a pair of numbers that add to make 4, and multiply together to make 3. Students should be encouraged to try options (e.g. 2 and 2).
T...