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Simplifying 7(x + 2) + -4 = 4x + 3(3 + x) Reorder the terms: 7(2 + x) + -4 = 4x + 3(3 + x) (2 * 7 + x * 7) + -4 = 4x + 3(3 + x) (14 + 7x) + -4 = 4x + 3(3 + x) Reorder the terms: 14 + -4 + 7x = 4x + 3(3 + x) Combine like terms: 14 + -4 = 10 10 + 7x = 4x + 3(3 + x) 10 + 7x = 4x + (3 * 3 + x * 3) 10 + 7x = 4x + (9 + 3x) Reorder the terms: 10 + 7x = 9 + 4x + 3x Combine like terms: 4x + 3x = 7x 10 + 7x = 9 + 7x Add '-7x' to each side of the equation. 10 + 7x + -7x = 9 + 7x + -7x Combine like terms: 7x + -7x = 0 10 + 0 = 9 + 7x + -7x 10 = 9 + 7x + -7x Combine like terms: 7x + -7x = 0 10 = 9 + 0 10 = 9 Solving 10 = 9 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.
| 3x+7y=21 | | -2(5t+3)-(7-2t)= | | 5(3n-2)=(5n+1)+7 | | 8(5m-7n)= | | 9x-4=5(x+1)+4x-9 | | 7y+2(y-8)=3(y+1)-2 | | 4y^3-8y^2-60y=0 | | 2n+4(n+10)= | | 12t^2+t=6 | | -3(t-3)+9t=8t-1 | | 4(5x-2)=72 | | -4(t-5)+6t=9t-7 | | 2h-3(4h+7)= | | 3+2x+x=-18 | | -3x+9+x=5 | | 3-2x+4x=7 | | 42x-5=x | | 21=5x+7x+9 | | -2(t-5)+4t=9t-3 | | 100-7x=11x+16 | | 5+2n=9 | | 5n-4n= | | -4x-3=5 | | -3y-35=5y+13 | | 11-9x=63-37x | | y^2+6-5=0 | | 5(3n+1)=8(5n+5)+7 | | 4y+4=20 | | 8-3(a-1)=7+a | | 5(6-5x)=6x-22 | | 8-3(a-1)=7+1 | | = 20 |