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Simplifying 6x + 21 + x = 21 + 2x Reorder the terms: 21 + 6x + x = 21 + 2x Combine like terms: 6x + x = 7x 21 + 7x = 21 + 2x Add '-21' to each side of the equation. 21 + -21 + 7x = 21 + -21 + 2x Combine like terms: 21 + -21 = 0 0 + 7x = 21 + -21 + 2x 7x = 21 + -21 + 2x Combine like terms: 21 + -21 = 0 7x = 0 + 2x 7x = 2x Solving 7x = 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. 7x + -2x = 2x + -2x Combine like terms: 7x + -2x = 5x 5x = 2x + -2x Combine like terms: 2x + -2x = 0 5x = 0 Divide each side by '5'. x = 0 Simplifying x = 0
| a=1/2×16×26 | | 6x+14+x=21+2x | | H=20t-16tsquared | | 6x-5+x=21+2x | | f(x)=3x-7x+1 | | 6x-14+x=40+2x | | 6x-14+x=7+2x | | 15=-(5/8)y | | 6x-14+x=21+2x | | 7x-4x+11=2x+6 | | 6x-12+x=21+2x | | 6x-10+x=21+2x | | 79/4= | | 0.0512x+0.125(x-2)=0.725x | | C=37.27x+.50 | | 36=1/3b*9 | | 3(7)+2y=5 | | 16x^2-20x+6=0 | | (x-5)(x+i)(x-i)=0 | | 4x+17x+15=0 | | 3b-2-10-b=2 | | 2x^2-2x=9 | | 7x-15x=24 | | 4x=.5(9x+26+35) | | P^2-4p+16=0 | | 1/9x63 | | 6s+6(15+-1s)=90 | | x^1/2=18y^1/2 | | 0.45*80= | | x=-3(x+2)-2 | | 6s+6g=90 | | -x^3-11x^2-24x+36=0 |