1/2r+1/4(r+16)=4+3/4

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Solution for 1/2r+1/4(r+16)=4+3/4 equation: 


r in (-oo:+oo)

(1/4)*(r+16)+(1/2)*r = 3/4+4 // - 3/4+4

(1/4)*(r+16)+(1/2)*r-(3/4)-4 = 0

(1/4)*(r+16)+(1/2)*r-3/4-4 = 0

1/4*(r+16)+r/2-3/4-4 = 0

(1/4*2*4*(r+16))/(2*4)+(4*r)/(2*4)+(-3*2)/(2*4)+(-4*2*4)/(2*4) = 0

1/4*2*4*(r+16)+4*r-3*2-4*2*4 = 0

6*r-32-6+32 = 0

6*r-32+26 = 0

6*r-6 = 0

(6*r-6)/(2*4) = 0

(6*r-6)/(2*4) = 0 // * 2*4

6*r-6 = 0

6*r-6 = 0 // + 6

6*r = 6 // : 6

r = 6/6

r = 1

r = 1

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