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Simplifying f(7) = f(7 + 1) + 20 Reorder the terms for easier multiplication: 7f = f(7 + 1) + 20 Combine like terms: 7 + 1 = 8 7f = f(8) + 20 Reorder the terms for easier multiplication: 7f = 8f + 20 Reorder the terms: 7f = 20 + 8f Solving 7f = 20 + 8f Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-8f' to each side of the equation. 7f + -8f = 20 + 8f + -8f Combine like terms: 7f + -8f = -1f -1f = 20 + 8f + -8f Combine like terms: 8f + -8f = 0 -1f = 20 + 0 -1f = 20 Divide each side by '-1'. f = -20 Simplifying f = -20
| f(7)=f(7-1)+20 | | f(n)=f(n-1)+d | | -10xy/5xz | | 9x-7=8y-3x | | (X-10)=(2x-34) | | A+B+B+B+80+90=170 | | 7x-(5x-3)=2x+7 | | u^2+u=30 | | 5k-k+2k= | | u^2+u-3=30 | | A^2-9a-10=-24 | | k-24=-7 | | sin(4x)cos(5x)=1 | | (u/-3v^3)^3 | | 8z+16=760 | | 5(3x-4)-3=5(x-4)+37 | | .5*15+x=161.25 | | 3n-2=5n-3n+40 | | 5(3x-4)-3=5(x-4)+7 | | 3x+x+2x=105-x | | 86-7z=z+46 | | 2x^2+10xy+8=0 | | 50x+100=60x+50 | | 5Y-75=3Y+17 | | (3w-8z)2= | | -7.3x=58.4 | | z/9=72 | | =7x^3-28x | | (2x+30)(3x+15)= | | y/7=84 | | 15x=780 | | 9n=369 |