Cho: <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-3">x</span><span class="MJXp-mo" id="MJXp-Span-4" style="margin-left: 0.267em; margin-right: 0.267em;">×</span><span class="MJXp-mn" id="MJXp-Span-5">3</span><span class="MJXp-mo" id="MJXp-Span-6" style="margin-left: 0em; margin-right: 0.222em;">,</span><span class="MJXp-mn" id="MJXp-Span-7">8</span><span class="MJXp-mo" id="MJXp-Span-8" style="margin-left: 0.333em; margin-right: 0.333em;">=</span><span class="MJXp-mn" id="MJXp-Span-9">1</span><span class="MJXp-mo" id="MJXp-Span-10" style="margin-left: 0em; margin-right: 0.222em;">,</span><span class="MJXp-mn" id="MJXp-Span-11">2</span><span class="MJXp-mo" id="MJXp-Span-12" style="margin-left: 0.267em; margin-right: 0.267em;">+</span><span class="MJXp-mn" id="MJXp-Span-13">2</span><span class="MJXp-mo" id="MJXp-Span-14" style="margin-left: 0em; margin-right: 0.222em;">,</span><span class="MJXp-mn" id="MJXp-Span-15">6</span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large x \times 3,8 = 1,2 + 2,6</script>. Vậy <span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-16"><span class="MJXp-mstyle" id="MJXp-Span-17"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-18">x</span><span class="MJXp-mo" id="MJXp-Span-19" style="margin-left: 0.333em; margin-right: 0.333em;">=</span><span class="MJXp-mo" id="MJXp-Span-20" style="margin-left: 0em; margin-right: 0em;">…</span></span></span></span><script type="math/tex" id="MathJax-Element-2">\Large x = …</script> 1 0 14,

Cho: x×3,8=1,2+2,6. Vậy x= 1 0 14,

4/5

Tác giả: Thầy Tùng

Đăng ngày: 18 Aug 2022

Lưu về Facebook:

Câu hỏi:

Cho: x×3,8=1,2+2,6. Vậy x=

Đáp án án đúng là: A

Lời giải chi tiết:

x x 3,8 = 1,2 + 2,6

x x 3,8 = 3,8

x = 3,8 : 3,8

x = 1