exam Maths Puzzle Numerical Ability

Solve each of the following equations for x.

2/5= x - 2/20

Thank You!!!

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exam Other Question

I need to simplify 6.7x(3x-2y)+1.2(x^2-y^2)

Heres what I have completed 20.1x^2-13.4xy+1.2x^2-1.2y^2 = 21.3x^2-1.2y^2-13.4xy Find 4 solutions for each equation, write the solution as ordered pairs, then graph them.
2x+y=7
and
x-2y=-1

thanks you! (=