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Simplifying 7x + -20 = 2x + -10 Reorder the terms: -20 + 7x = 2x + -10 Reorder the terms: -20 + 7x = -10 + 2x Solving -20 + 7x = -10 + 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. -20 + 7x + -2x = -10 + 2x + -2x Combine like terms: 7x + -2x = 5x -20 + 5x = -10 + 2x + -2x Combine like terms: 2x + -2x = 0 -20 + 5x = -10 + 0 -20 + 5x = -10 Add '20' to each side of the equation. -20 + 20 + 5x = -10 + 20 Combine like terms: -20 + 20 = 0 0 + 5x = -10 + 20 5x = -10 + 20 Combine like terms: -10 + 20 = 10 5x = 10 Divide each side by '5'. x = 2 Simplifying x = 2
| x^2-4-x=0 | | 7x-5y=4 | | 5x-1123=23434 | | 2x-22=0 | | 3-3x=x+7 | | -3(4z-1)-2(z-1)=8(z+1) | | 4z^4-20z^3-56z^2=0 | | 68=-17k | | -4(2n+5)=16 | | x^2-36+x=0 | | 20=x-13 | | 3x^2-17x=28 | | -10x^2+0.1x=0 | | 5.4=x-2.5 | | 45x+90=396-216 | | 5xy+3y= | | -47+x=-54 | | 45x-90=0 | | 9-(3z-9)=5-4z | | -3x^2+2x=0 | | 5.6+8b-5.7=-8+12b | | 5*[(x-9)(x-9)]=30 | | 15d+8=8d+64 | | -15x=120 | | 13-2x+14=17 | | 3x+2.8+2x+4.2+x=34 | | 7m+8=14 | | 0.5c+4.3-0.2c=0.3c+11 | | x*5=20 | | g-5*16=3*16 | | 12x-168=24x | | x*5=30 |