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Simplifying 9x + -1(4x + 3) = 42 Reorder the terms: 9x + -1(3 + 4x) = 42 9x + (3 * -1 + 4x * -1) = 42 9x + (-3 + -4x) = 42 Reorder the terms: -3 + 9x + -4x = 42 Combine like terms: 9x + -4x = 5x -3 + 5x = 42 Solving -3 + 5x = 42 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 5x = 42 + 3 Combine like terms: -3 + 3 = 0 0 + 5x = 42 + 3 5x = 42 + 3 Combine like terms: 42 + 3 = 45 5x = 45 Divide each side by '5'. x = 9 Simplifying x = 9
| 7x(x-4)+3=5x-9 | | 6ln(x^3)-2ln(x^4-1)=0 | | 8x+5=5-(9x-9) | | 7x+6(2-x)+25=32+3(6+x) | | 2x-7+4x=11 | | 2x=27 | | x-6+x(3)=180 | | 30b^2-114b+72=0 | | x-4=7 | | 7h-29=27# | | 6x^2+6x-5=3x^2-10x+7 | | x-6(3)=180 | | 4(x-7)=3x-5 | | 5x=2x+78 | | 7.91*x*0.01=2.373*1000 | | 7y-22-9y+38= | | 7=1-2m | | 15u-8u=35 | | -11x-5.5=38.5 | | 3m+4=-5 | | 5(-x+9)=75 | | x+46+x=180 | | -x+3=6 | | 4x-13.6=8.4 | | 6x-16=5x+11 | | 7.91*x*10*0.01=2.373*1000 | | 16-(3m+8)=2+4m-15 | | 2(x+6)=7x+5 | | 7(6-2y)=5(-3y+1) | | -4b-2b=10 | | 15x+24=80+21x-2 | | (2*15)+(2*x)=52 |