Find the intersection point between the equations y=4x+7 and 3y=12x+21
-Take the second equation and divide all terms by 3.-This gives us two equations set up as "y = mx+C" -Make the equations equal to each other as Y = Y at the point of intersection.-Solve from here.
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Related Maths GCSE answers
All answers ▸Rearrange to make p the subject. C + 5 p = a ( C – p )
Electricity: 23.15 cents p/day plus 13.5 cents p/unit used Gas price: 24.5 cents p/day plus 5.5 cents p/unit used (a)(i) In 90 days, a family used 1885 units of electricity. Calculate the total cost, in dollars, of the electricity they used.
If p = (3a + 5)/(4 - a), make a the subject of the formula
15x^2 − 4x + x^2 + 9x − x − 6x^2 =