2026年计算100七年级数学上册苏科版第85页答案
解下列方程:
(1) $8y - 3(3y + 2) = 6$;
(2) $-3(x - 1) - 4(x - 2) - 3 = 4$;
(3) $58 + 0.25(t - 150) = 88$;
(4) $2 - 3(x + 2) = 1 - 2(1 + 0.5x)$;
(5) $7(x + 6) + 4 = -6 - 3(x + 6)$;
(6) $2(5x - 10) - 3(2x + 5) = 1$;
(7) $5(x - 4) - 3(2x + 1) = 2(1 - 2x) - 1$;
(8) $6[5(2x + 1) + 5] - 1 = -6x$。

答案

(1)$y=-12$
(2)$x=\dfrac{4}{7}$
(3)$t=270$
(4)$x=-\dfrac{3}{2}$
(5)$x=-7$
(6)$x=9$
(7)$x=8$
(8)$x=-\dfrac{59}{66}$