Evaluate g(8x− 7) g (8 x - 7) by substituting in the value of f f into g g. Add −7 - 7 and 8 8. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

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含有一个未知数 $x$ 的方程式通常以如下形式表示: $f (x) = g (x)$。 方程式的解 (或根)是使方程式转化为正确的数值等式的未知数的值。 解方程式就是找到所有解或证明没有解。 如何使用计算器解方程式:先输入等号 = 左边的部分,按下 x=y 键,再输入右边的部分,按下 = 键进行计算。 例如,对于方程式 $2x - 4 = 0$,根为 $x = 2$。 以下是使用方程式计算器得到这个结果的方法: $$2x - 4 = 0 \\ \Downarrow \\ x = 2$$ 2x-4x=y0= 含有一个未知数的线性方程式可以表示为: $$ax + b = 0,$$ 其 …

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2018年11月19日 · g(x) = 8x - 7 . Given that g(x) is 25. Hence, ... 25 = 8x - 7 *Let's add 7 on both sides: *... 25 + 7 = 8x ... 32 = 8x *Let's now divide both sides by 8. * *... x = 32/8 * *... x = 4 * …