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Simplifying 12 + 3 = 3(4x) Combine like terms: 12 + 3 = 15 15 = 3(4x) Remove parenthesis around (4x) 15 = 3 * 4x Multiply 3 * 4 15 = 12x Solving 15 = 12x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-12x' to each side of the equation. 15 + -12x = 12x + -12x Combine like terms: 12x + -12x = 0 15 + -12x = 0 Add '-15' to each side of the equation. 15 + -15 + -12x = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -12x = 0 + -15 -12x = 0 + -15 Combine like terms: 0 + -15 = -15 -12x = -15 Divide each side by '-12'. x = 1.25 Simplifying x = 1.25
| X^2-9x+21=1 | | 3(5x-18)-5=76 | | 2x-5+4x-13= | | h=(-16t^2)+144t+2692 | | 12x+3=(4x) | | d=-4.9t^2+3.17 | | 11(z+2)-4(z-1)=2(z-3)+4(z-1) | | 39=-3(21-b)+3(b-2) | | 5x-6(2x-5)-5= | | 5d+2d+5d+9-4d=0 | | 3y+7=29x | | 630=840t | | 44=4(3x-10) | | 1=11.15249135*x+443.432625675216*y | | 314.011706*x+24672.00111525761*y=1 | | s^3+6s^2+12s+90=0 | | -4-3a=3a-4(a+2) | | 5(3x-9)-2=5(x-4)+33 | | 6-(2z-3)=3-3z | | 4(x-3)=23-7(4x+1) | | n+5=6.9 | | 2(x+1)=7(x-2)-4 | | 24=v-4 | | 6x+x=-9 | | -20x+82=0 | | X+18+4x=-29-4x-34 | | 10-2[3(x+4)-5]=4(x-6)+2(2x-4) | | -3=10+n | | 3.5+0.5x=20 | | 7(n-3)-(5-6n)=12n | | 6(n-4)-(3-5n)=10 | | .50+.25(50)=48.5 |