次の方程式を解く問題です。 (1) $5x + 8 = 8x - 4$ (2) $7 - 2(x - 1) = 9$ (3) $-3x + 1 = x - 7$ (4) $\frac{x}{2} - \frac{x-1}{3} = 1$代数学一次方程式方程式計算2025/4/81. 問題の内容次の方程式を解く問題です。(1) 5x+8=8x−45x + 8 = 8x - 45x+8=8x−4(2) 7−2(x−1)=97 - 2(x - 1) = 97−2(x−1)=9(3) −3x+1=x−7-3x + 1 = x - 7−3x+1=x−7(4) x2−x−13=1\frac{x}{2} - \frac{x-1}{3} = 12x−3x−1=12. 解き方の手順(1)5x+8=8x−45x + 8 = 8x - 45x+8=8x−45x−8x=−4−85x - 8x = -4 - 85x−8x=−4−8−3x=−12-3x = -12−3x=−12x=−12−3x = \frac{-12}{-3}x=−3−12x=4x = 4x=4(2)7−2(x−1)=97 - 2(x - 1) = 97−2(x−1)=97−2x+2=97 - 2x + 2 = 97−2x+2=99−2x=99 - 2x = 99−2x=9−2x=9−9-2x = 9 - 9−2x=9−9−2x=0-2x = 0−2x=0x=0−2x = \frac{0}{-2}x=−20x=0x = 0x=0(3)−3x+1=x−7-3x + 1 = x - 7−3x+1=x−7−3x−x=−7−1-3x - x = -7 - 1−3x−x=−7−1−4x=−8-4x = -8−4x=−8x=−8−4x = \frac{-8}{-4}x=−4−8x=2x = 2x=2(4)x2−x−13=1\frac{x}{2} - \frac{x-1}{3} = 12x−3x−1=1両辺に6をかける:6×x2−6×x−13=6×16 \times \frac{x}{2} - 6 \times \frac{x-1}{3} = 6 \times 16×2x−6×3x−1=6×13x−2(x−1)=63x - 2(x - 1) = 63x−2(x−1)=63x−2x+2=63x - 2x + 2 = 63x−2x+2=6x+2=6x + 2 = 6x+2=6x=6−2x = 6 - 2x=6−2x=4x = 4x=43. 最終的な答え(1) x=4x = 4x=4(2) x=0x = 0x=0(3) x=2x = 2x=2(4) x=4x = 4x=4