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Simplifying -7w + 3(w + 5) = -21 Reorder the terms: -7w + 3(5 + w) = -21 -7w + (5 * 3 + w * 3) = -21 -7w + (15 + 3w) = -21 Reorder the terms: 15 + -7w + 3w = -21 Combine like terms: -7w + 3w = -4w 15 + -4w = -21 Solving 15 + -4w = -21 Solving for variable 'w'. Move all terms containing w to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -4w = -21 + -15 Combine like terms: 15 + -15 = 0 0 + -4w = -21 + -15 -4w = -21 + -15 Combine like terms: -21 + -15 = -36 -4w = -36 Divide each side by '-4'. w = 9 Simplifying w = 9
| -31=5(v-3)-7v | | 11=-7x+3(x+5) | | 3x(4-5)=10 | | 3m-1+2m= | | y=1/6x-1/9 | | 6u-42=-4(u+3) | | 0.2p-3=-0.33333333p+5 | | -4(w+4)=3w+19 | | -4(1+8n)=-228 | | 2(u-6)-6u=4 | | -88=-8(5v+6) | | -7y+4(y+2)=38 | | 1.3n-4.7+6.5=7 | | (4x)/(x-9)=y | | 8(75-1.5y)+12y=600 | | y=3.6x+4 | | -30+X^2=6 | | 2(70-1y)+2y=70 | | 0.9n+5.2n=-17.0922 | | (70-1y)+y=70 | | 3x+6=30-5x | | E^2x=3.6 | | 10x+4=15x-4 | | 30/21D-14/21D=192 | | 6a+9b+20c=15 | | 6.25*1.6= | | 6a+9b+20c=146 | | 4x^2-31x+37=-8x+9 | | 30=75-1.5y | | -5(2t-5)+4t=6t-4 | | (2*9)+(2w)=32 | | 30=70-1y |