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Simplifying 4x + 7(1 + -1x) = 19 4x + (1 * 7 + -1x * 7) = 19 4x + (7 + -7x) = 19 Reorder the terms: 7 + 4x + -7x = 19 Combine like terms: 4x + -7x = -3x 7 + -3x = 19 Solving 7 + -3x = 19 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 + -3x = 19 + -7 Combine like terms: 7 + -7 = 0 0 + -3x = 19 + -7 -3x = 19 + -7 Combine like terms: 19 + -7 = 12 -3x = 12 Divide each side by '-3'. x = -4 Simplifying x = -4
| 10x+20y=40 | | 7+3y=31 | | 2x+y=-20 | | 4x+17=3x+40 | | h=2.5433(9.5)+28.465 | | 8-4n=11-n | | -6x-3=-21 | | 4x+17+3x+40=180 | | 7.5=2.5433a+28.465 | | -3x+40=34 | | y=1.6x+7 | | 5x+7+2x+6=2x+8 | | -8x+6=30 | | x^2(2x-1)=0 | | 5x-12=-27 | | 3(x+2)-2x+5=x+6 | | -8+16= | | 5x-8x-7=3x+6-7 | | ac+5a-2c-10=0 | | 9x-6y=1 | | 5.13-1.34x=4x-2.079 | | 5x+20+4x+52=180 | | 5x+5-8x=10+2x | | 4m^2+12m+6=0 | | 1.1x+5.2=3.5x-2 | | 7(5-4u)=-4u-12 | | 4x-23=-27 | | 16n+112=112+16n | | 2y^7+6xy^8=0 | | 5r+6c=3r+8 | | 9x^3+3x^2-2x=0 | | 0.15x+.05(8-x)=.10(12) |