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Simplifying x + (x + 7) = 22 Reorder the terms: x + (7 + x) = 22 Remove parenthesis around (7 + x) x + 7 + x = 22 Reorder the terms: 7 + x + x = 22 Combine like terms: x + x = 2x 7 + 2x = 22 Solving 7 + 2x = 22 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 2x = 22 + -7 Combine like terms: 7 + -7 = 0 0 + 2x = 22 + -7 2x = 22 + -7 Combine like terms: 22 + -7 = 15 2x = 15 Divide each side by '2'. x = 7.5 Simplifying x = 7.5
| 5x(x+3)=5x^2-30 | | 3(2x-8)=4x-12 | | 4x-2/3=8 | | -3(3+x)+4(6-x)=-4 | | 5X-6-4x=13 | | 169x^2+16=0 | | 5+3x=12-4x | | X+6x+4=-11-6+4x | | 2c-2=c | | sin54/1=x/17 | | 6(x+4)=-2(2x+13) | | -7-n=-39 | | 65/n=-13 | | 1+ln(x^2-4)=0 | | 10+3n=n+28 | | 1+ln(x^2+4)=0 | | Y+125+58=189 | | 3w+13=73 | | -2n+9=-19 | | X+125+58=180 | | n+(-7)=28 | | -2-5.4x=13 | | x^2+x=1.25 | | (3x-5)(x+1)=-4 | | 3(x+1)=4(1+x)+5 | | 4x^2+1.6x-1.6=0 | | (15x+10)=(6x+12) | | 4x(x-1)+3(3+x)=2 | | (6x-3)=75 | | X+6+3x-12=180 | | y=8x+45 | | 3n-6=22 |