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Simplifying 1(21) = 0 Multiply 1 * 21 21 = 0 Solving 21 = 0 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
| 4x^2-47=53 | | x+24=x | | 3x=(-12) | | 2x+28=40 | | 4/5x=5-3 | | 2(x+14)=40 | | 5-3=3x | | x-4=(-12) | | r-15=30 | | 4/5x5-3 | | -6(3n+-2)=4(-3-2n) | | 8/6•7 | | 8x+7=-33 | | -6(3n-2)=0 | | -9=-6x+5 | | ln(6x+2)=ln(5) | | 24-5x=6-7x | | 6/(7x^-2/5) | | 3x+40=2x-20 | | 6x=28.68 | | 5x+2x+18= | | 2(2.5)-2(1.5)=2 | | 6c=28.68 | | 6s+3s+9=0 | | 25=0.33x-579 | | t+22=-3(t+7)+9 | | 5x+20=4x-791 | | 3.8x=24.7 | | y=-5(2.5)+14 | | 5x+20=4x-79 | | (u/5)=(u/5)-4 | | x-2.9=1.85 |