Expand and simplify 3(m + 4) – 2(4m + 1)
Multiply through the 3 of the first bracket to get 3m +12. Then multiply out the second bracket by -2 to get -8m -2.
Write it out in a line: 3m + 12 - 8m -2
Simplify: -5m +10
Divide by -5 again to simplify further: m - 2
TD
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All answers ▸Solve the simultaneous equations 3x+2y=8 and 3y+4x=11
A is the point with coordinates (5, 9) B is the point with coordinates (d, 15) The gradient of the line AB is 3 Work out the value of d.
How to solve a simple simultaneous equation
Work out the value of the following: