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Simplifying 21 = -7f Solving 21 = -7f Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '7f' to each side of the equation. 21 + 7f = -7f + 7f Combine like terms: -7f + 7f = 0 21 + 7f = 0 Add '-21' to each side of the equation. 21 + -21 + 7f = 0 + -21 Combine like terms: 21 + -21 = 0 0 + 7f = 0 + -21 7f = 0 + -21 Combine like terms: 0 + -21 = -21 7f = -21 Divide each side by '7'. f = -3 Simplifying f = -3
| 62-3*3*8+11= | | 4(6x-5)=52 | | 4/7=3/5+y | | sqrt(4x+2)=0 | | 7x-2+(7x-2)+(2x+4)=48 | | 6x^7=8x^7 | | (y+7)(-2)= | | (2x-1)=-5(3x-15) | | 6(4z+2)=3(8x+4) | | x+(-10)=-23 | | (2a+3b-5a-6b)= | | -12=-4.2+b | | 2*x+49=3*x+40 | | 2x+2(4x+5)=490 | | 0.4(5+2n)-0.5=3(0.3n+0.7) | | 8-6n=-12-4n-7n | | 16.95y+.05x=22.95y+.02x | | 24x-20=4(10+60x) | | 9(x+1)-7=5x+4(1+x) | | c=39.53+.25x | | x+(4x+5)=490 | | x+6x-30=180 | | 2x+4+2x=x+20 | | 3k-5=-6k+2+2k | | x+(4x-5)=490 | | 3-2t=0 | | 16.95+.05x=22.95y+.02x | | -73.2=6.1y | | -7(2x-7)=21(3x-5) | | 15+y=26 | | -15n=5(3n+2) | | 7x-2+7x-2+2x+4=48 |