Find the point of intersection of the lines y=2x-7 and 4y-2=3x

Substitute y into 4y-2=3x

4(2x-7)-2=3x   ->   8x-28-2=3x     ->      8x-3x=28+2    ->   5x=30    ->    x=30/5    ->    x=6

subsitute x into y=2x-7

y=2(6)-7    ->     y=12-7    ->    y=5

Point = ( 6 , 5 )

                            

IG

Related Maths A Level answers

All answers ▸

Given that z=sin(x)/cos(x), show that dz/dx = sec^2(x).


Integral of a compound equation (or otherwise finding the area under a graph): f(x) = 10x*(x^(0.5) - 2)


evaluate the integral 2x/((9+x^2)^1/2) between -2 and 0


Derive 2*x^(3/2)+x+4