解方程（1）1.56x+3.16=7.84x=（

解方程1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（1）1.56x+3.16 =7.841T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示)c.N0S1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x=7P(J(V2M)};t;P9g-y0D1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（2）7.6x+2x+0.72 =181T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示4?0U,N-L'd1u4F)d2q-s0m1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x=.o6[.i1f*j9x;Y9a:X'[1v8@9@(@1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（3）5.8 ×4.5 +0.4x =29.11T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示7b:F.J1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x='k's/`3M*P*R;s;r5J,F1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（4）x +0.7x+0.96 =31T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示:M:N3Y0C2_:l;b2O;K2u1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x=)N6x3K-b6u;f0`6C8X-w1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（5）3.9x +9.36 =13.651T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示0i7v7Q3g9]'u9O2h*A1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x=.f:M'F)i0M;V.Y.i.]1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

（6）（x-3）÷4=7.21T*T4Z9u;I(V.e;M4M3[;W7g3k-q

算式：提示(a.A3v4E't.t5b5R6P3\'p:k8};?6O.j1T*T4Z9u;I(V.e;M4M3[;W7g3k-q

x=(`/E,b:P,L,w*U;s)O0D3Y1T*T4Z9u;I(V.e;M4M3[;W7g3k-q