6a+a
x²-1=0
15m-12m45cm
make x the subject
5ax=6d
expand and simplify 8(5d-2)+9
5x^4 + 10x^2 - 15x^3
6x^2 + 4x^3 + 21x
2x^6 - x
3x^3 + 4x^2 - 6x^6 - 10x^4
ax=b
234+34
expand and simplify 2(3x-7)+19
If y is inversely proportional to x, and y = 6 when x = 2, what is the value of y when x = 4?
