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Simplifying 6f + 13 = 2f + 21 Reorder the terms: 13 + 6f = 2f + 21 Reorder the terms: 13 + 6f = 21 + 2f Solving 13 + 6f = 21 + 2f Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-2f' to each side of the equation. 13 + 6f + -2f = 21 + 2f + -2f Combine like terms: 6f + -2f = 4f 13 + 4f = 21 + 2f + -2f Combine like terms: 2f + -2f = 0 13 + 4f = 21 + 0 13 + 4f = 21 Add '-13' to each side of the equation. 13 + -13 + 4f = 21 + -13 Combine like terms: 13 + -13 = 0 0 + 4f = 21 + -13 4f = 21 + -13 Combine like terms: 21 + -13 = 8 4f = 8 Divide each side by '4'. f = 2 Simplifying f = 2
| 3x^3/-15x | | 3k-5=7+7k | | 5(1-6n)+1=6 | | a/2-2=8 | | 2500/(1-.4X) | | 5m+2n+9m+7n= | | 2x+100=7x-20 | | 8(-76+2)=40 | | 6f-13=12 | | tan63=x/15 | | 5a-7=25 | | -9x+5= | | -6(v-6)=48 | | 4y+2x=x-64 | | X^8=92 | | 5x+74=180 | | -3x+6y=-21 | | -5(a+6)=-20 | | 10y^3+9y^2+2y=0 | | 106+40x=180 | | -(1-8x)=63 | | 9(1.063x+1)=14 | | 8x+33=180 | | h=-16t^2+20t+1200 | | 57+23x=180 | | -4x^2-3x+6=0 | | (3y+4)=(4y-5) | | 8x+33=90 | | h=-16t+20t+1200 | | -5-4(-4+8n)=-21 | | 2m=m+2 | | 57+23x=90 |