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Simplifying -128 = 4(-7 + -5n) -128 = (-7 * 4 + -5n * 4) -128 = (-28 + -20n) Solving -128 = -28 + -20n Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '20n' to each side of the equation. -128 + 20n = -28 + -20n + 20n Combine like terms: -20n + 20n = 0 -128 + 20n = -28 + 0 -128 + 20n = -28 Add '128' to each side of the equation. -128 + 128 + 20n = -28 + 128 Combine like terms: -128 + 128 = 0 0 + 20n = -28 + 128 20n = -28 + 128 Combine like terms: -28 + 128 = 100 20n = 100 Divide each side by '20'. n = 5 Simplifying n = 5
| -3n+5=6n-4n | | 48=7x-1 | | 4.7=-32.9 | | 11c-5=9c+7 | | 5(a+6)-3a(a+4)= | | -4u-14=2(-2v-7) | | (x)2-4x-12=-6x-2 | | 12000=1200x-x^3 | | 5(2x-3)-7x-5=11 | | y=5x-2.5 | | 7n+2n=35 | | 4+p=20 | | 75=0.01x^4+4x+50 | | 9n-7=173 | | 6.8=-log(x) | | 4x-46=42 | | (4a+5)=(2a-3) | | 25=0.01x^4+4x+50 | | 3.50+5.50+6=12 | | 7g+4h=34 | | -126=6(3+3b) | | 4w^3+w^2-5w= | | 8-1-y=-7 | | 12(z-2)=3z+1 | | 10p+2=102 | | 18+5.5m=73 | | 23935.91*(1)+(0.34/12)=a | | 8(9c-1)-16=70c+8 | | -3(-5x-4)=6(x-1) | | 23935(1+0.34/12)=a | | .71x=35 | | 8(y-3)=5y-36 |