Verified answer

Bonjour, * signifie multiplier

G= 3 * x + 4* x

G= x + x + x  + x + x + x + x

G = 7 * x

G =7x

H = 5x + 2x

H= 5*x + 2*x

H = x + x + x + x + x + x + x

H = 7 * x

H= 7x

I= 2x + 3x + 4x

I = 2*x + 3*x + 4*x

I = x + x + x + x + x + x +x + x + x

I = 9 * x

I = 9x

J = 3x + x

J = 3* x + x

J = x +x + x + x

J = 4 * x

J =4x