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Simplifying 21(3x + -18) = 20(4x + 4) + -3(x + 2) Reorder the terms: 21(-18 + 3x) = 20(4x + 4) + -3(x + 2) (-18 * 21 + 3x * 21) = 20(4x + 4) + -3(x + 2) (-378 + 63x) = 20(4x + 4) + -3(x + 2) Reorder the terms: -378 + 63x = 20(4 + 4x) + -3(x + 2) -378 + 63x = (4 * 20 + 4x * 20) + -3(x + 2) -378 + 63x = (80 + 80x) + -3(x + 2) Reorder the terms: -378 + 63x = 80 + 80x + -3(2 + x) -378 + 63x = 80 + 80x + (2 * -3 + x * -3) -378 + 63x = 80 + 80x + (-6 + -3x) Reorder the terms: -378 + 63x = 80 + -6 + 80x + -3x Combine like terms: 80 + -6 = 74 -378 + 63x = 74 + 80x + -3x Combine like terms: 80x + -3x = 77x -378 + 63x = 74 + 77x Solving -378 + 63x = 74 + 77x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-77x' to each side of the equation. -378 + 63x + -77x = 74 + 77x + -77x Combine like terms: 63x + -77x = -14x -378 + -14x = 74 + 77x + -77x Combine like terms: 77x + -77x = 0 -378 + -14x = 74 + 0 -378 + -14x = 74 Add '378' to each side of the equation. -378 + 378 + -14x = 74 + 378 Combine like terms: -378 + 378 = 0 0 + -14x = 74 + 378 -14x = 74 + 378 Combine like terms: 74 + 378 = 452 -14x = 452 Divide each side by '-14'. x = -32.28571429 Simplifying x = -32.28571429
| 3x+5=2+x | | an=5n-2 | | 121=-7-8(n-8) | | 6(x-7)+x=7(x-7)+7 | | 5(x+5)+5=5x+6 | | 3x-7(x+3)=-13 | | (3x-3)+(2x+13)=90 | | h-1=0 | | 12+x-16=4x+2 | | -94=-9+5p | | 6(3x+10)=-6(-4x+7) | | 5x^2(2+x)+9(x^3-5x^2)= | | 3x+-7x+21=-13 | | 9=-3x^2 | | 8=6+n/4 | | (-3x-10)(-3x+9)= | | -2x-5=9+5x | | 30-t=4t | | 3x-7x+21=-13 | | 7=10+y | | 0.3x+(x-10)*0.5=12 | | 90=-9(-6-2z) | | 6x-16=14-4x | | БиографияипсихологическийпортретРаскольников—человекзамечательногоума,онглубокоитонкочувствует,способенкпостоянномуинтеллектуальномуанализусвоихичужихпоступков.Оноченьзамкнут,необщителен.Единственныйдругего—этоРазумихин.Раскольниковзадавленнищетой,онстрад | | 3(y+4)-3=30 | | (9n^7+8n^6+7)+(5n^7+2n^6-4)= | | -3=x+15 | | 4x^2+41x+10= | | 2(2x+4)+4(2x+6)+5=12x+38 | | y-7-6y=13 | | 35y+1=21 | | 6-7k+3-3(4-K)= |