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Simplifying 21 = -6m + 39 Reorder the terms: 21 = 39 + -6m Solving 21 = 39 + -6m Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '6m' to each side of the equation. 21 + 6m = 39 + -6m + 6m Combine like terms: -6m + 6m = 0 21 + 6m = 39 + 0 21 + 6m = 39 Add '-21' to each side of the equation. 21 + -21 + 6m = 39 + -21 Combine like terms: 21 + -21 = 0 0 + 6m = 39 + -21 6m = 39 + -21 Combine like terms: 39 + -21 = 18 6m = 18 Divide each side by '6'. m = 3 Simplifying m = 3
| 5k-6=-31 | | 4-3[2-(4y-5)]= | | -4(2x-3)=-8n-20 | | 7x^2-19x-8= | | 2x+33=162 | | 21/6/4 | | 81x+9y=72 | | 5(r+9)-2(-1-r)=1 | | 11.4=-14.2+4u | | 6x^2+2x=1 | | -4x+9x=3 | | -10=y/3-4 | | 33=172-u | | 56*x/7 | | -y+25=160 | | 141-x=201 | | -1/2*-1/4= | | 3x-20/2 | | 3+5+12+12=97 | | w/3-17=9 | | 7h+5-6=14 | | -21=-7w | | 2/3*3/2 | | 7/8u=21 | | 3b+5d=0 | | 3a+2a+3a=180 | | 7=y/10 | | t/9=1-12 | | 6x-175-x^2+9=0 | | (2x-10)+(3x+5)=180 | | -4.6/2.3 | | (32)(5/9) |