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Simplifying 21 + -5x = 7 + -7x Solving 21 + -5x = 7 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. 21 + -5x + 7x = 7 + -7x + 7x Combine like terms: -5x + 7x = 2x 21 + 2x = 7 + -7x + 7x Combine like terms: -7x + 7x = 0 21 + 2x = 7 + 0 21 + 2x = 7 Add '-21' to each side of the equation. 21 + -21 + 2x = 7 + -21 Combine like terms: 21 + -21 = 0 0 + 2x = 7 + -21 2x = 7 + -21 Combine like terms: 7 + -21 = -14 2x = -14 Divide each side by '2'. x = -7 Simplifying x = -7
| (.66x+18)=(2x-5) | | 21-5x=7+7x | | (12)-(42)= | | 21-5x=-7+7x | | 4q-15=16q-1 | | 6-x=3x | | 3x+12=-42+6x | | -6+7r=6+5r | | -7+7r=6+5r | | (-46)-(12)= | | (-x^2+5x-3)+(7x^2+4x+6)= | | 9+10x=-45+x | | 0.02*1.5= | | (49)-(32)= | | 11x+2=4x+37 | | x+20+3x=120 | | (-41)-(-35)= | | 13=5x-3+3x | | (29)-(-15)= | | 6=3x+33 | | 16=w | | 84+6y=-6y | | 4x+12=10x-12 | | 5x+6-2x=9-7x | | 6(3x-2)-4(5x-9)= | | -[4z-(15z+8)]=8+(10z+1) | | 4x^2+5X-124=0 | | 8x-8=-6+7x | | (-19)-(-12)= | | 8x-8=-7+7x | | 42+12x=49+21x+9 | | (10)-(-19)= |